Halo: Combat Evolved

Halo: Combat Evolved is a video game in the First Person Shooter (FPS) genre, created by the Microsoft-owned Bungie Studios. It was released for the Xbox game console on November 15, 2001 and is backwards-compatible with Xbox 360.

Spoiler warning: Plot and ending details follow.

Summary
Halo's gameplay is characterized by several features which set it apart from less acclaimed first-person shooter games:


 * Storyline execution: Halo's gameplay and storyline have been known to be tightly interwoven, and delivered in a convincing manner which is consistent with the flow of the game.
 * Vehicles: Halo incorporates many vehicles into its single and multiplayer games, including flying ones.
 * Weapons system: Halo's weapons system is unusual in two respects. First, it allows one to carry only two weapons at any given time, forcing the player to switch weapons often and make trade-offs when choosing which weapons to carry. Second, Halo has an independent button for throwing grenades.
 * Artificial intelligence: Halo's AI was quite sophisticated for its time. For example, the more cowardly types of enemies would panic when one of their superiors was killed. If a speeding vehicle came at them, they could dive out of the way, and they could take cover from explosives or suppressive fire.

Movement and aiming
Movement in Halo is similar to other first-person shooters, allowing the player to move forwards, backwards, and strafe left and right independently of their aim. On the Xbox, moving and aiming are normally separated between the two joysticks; and on the PC, between the mouse and the keyboard.

Halo also allows the player to crouch and jump, although jumping from a high ledge will often result in death. Damage from falling can be reduced or negated entirely with a well-timed crouch, right as one lands.

Damage system
Main Article:Health


 * Health: The player in Halo has a finite, non self-regenerating health which can be fully restored by picking up health-packs. Running completely out of health will result in death</a>, but having lower health</a> does not impede player actions. A player's health</a> can only be reduced if his shields have failed.


 * Shields: The player carries a shield which protects all parts of his body from damage. The shield will decrease in strength every time it is hit by a weapon, and will fail after taking enough hits, but will quickly regenerate if it is not hit for a period of time. The shield represents a marked departure from most first-person shooters, in which one's health</a> bar is basically augmented by picking up "armor," and it is entirely possible, in the single-player campaign at least, to simply not have enough health</a> points to survive the next section of gameplay. Halo players, on the other hand, have a more-or-less permanent buffer of health</a> at their disposal (assuming they manage to find time to regenerate the shield), making it less of a disaster to take hits in combat.

Powerups
There are three types of powerups available in Halo:


 * Health Pack: Fully restores the health</a> of the player.


 * Active Camouflage: Drastically reduces the player's visibility for approximately 45 seconds, making all but a faint outline of him transparent. This effect is reduced if the player is hit by weapons fire or if he or she fires a weapon. The player looks very similar to the Predator from the movies</a>.


 * Overshield: An enhanced, non-regenerating shield which is three times the strength of the normal one. The overshield functions on top of the regular shield - when it is active, the normal shield does not take damage. In the single player game</a>, the overshield is reduced only when the player is hit, while in the multiplayer game</a>, it also weakens gradually with time.

Enemies
Three factions of enemies are encountered on Halo:


 * The Covenant: The Covenant whose Fleet of Particular Justice was led by the Supreme Commander, the future Arbiter are an alliance of different species, including the cowardly Grunts, the weak Jackals with their visible energy shields, the Elites with their personal energy shields, and the huge, tough Hunters with strong armor. The Covenant mostly carry plasma weapons of varying power. They also make extensive use of vehicles.


 * The Flood: The parasitic Flood are encountered in 3 forms: the lowly parasitic spores themselves, which usually die from a single shot; combat forms of former humans and Covenant whose nervous systems have been taken over by the parasite, which are tough and may carry either human or Covenant weapons; and exploding carriers, which cause splash damage and release spores.


 * Forerunner Sentinels: Part of Halo's defense system, the Sentinels, led by the Monitor</a> 343 Guilty Spark, are hovering robotic drones, and will attack Flood, Covenant, and (after the level Two Betrayals) the Master Chief. Although possessing a powerful beam weapon, they are not particularly resistant to damage.

Weapons
Main Article:Weapons

All usable weapons in Halo belong to either the Covenant or the UNSC (humans). The player can only carry two weapons at a time, in addition to up to 8 grenades (four fragmentation grenades and four plasma grenades).

Covenant weapons are better suited for reducing shields, and typically fire faster than their human counterparts. With the exception of the needler, they do not require ammunition or reloading; instead, each weapon comes with its own battery. Once this battery is depleted, the weapon must be discarded. Covenant weapons can also overheat (except the needler) if fired too often, after which, they must be given time to cool down before they can be used again.

Human weapons, on the other hand, require both ammunition and constant reloading. They are better suited to reducing health</a>, and do not overheat. However, on easy, and normal difficulty level settings, the difference is often negligible.

Human Weapons

 * M6D Pistol
 * MA5B Assault Rifle
 * M90 Shotgun
 * S2 AM Sniper Rifle (SRS99C)
 * M19 SSM Rocket Launcher
 * M7057 Defoliant Projector/Flamethrower (Halo PC)
 * M9 HE-DP Grenade
 * Warthog's AA/chain gun

Covenant Weapons

 * Plasma Pistol
 * Plasma Rifle
 * Needler
 * Fuel Rod Cannon (Halo PC)
 * Plasma Grenade

Vehicles
The vehicles available to the player are listed below:


 * Warthog - UNSC Light Reconnaissance Vehicle
 * Scorpion - UNSC Battle tank
 * Ghost - Covenant Reconnaissance and Rapid Attack Vehicle
 * Banshee - Covenant Aerial Assault Aircraft

Note that the Banshee is unavailable in multiplayer in the Xbox version.

There are also several vehicles that are not player controllable, like the UNSC Pelican dropship, and the Covenant Spirit dropship. The only tactically interesting of these vehicles is the Covenant Wraith Mortar tank, which fires large 'plasma bombs' in parabolic arcs towards its enemies. These bombs, if they score a direct hit, will often destroy vehicles or kill if the spartan is not equipped with an overshield. They can be taken down most effectively with explosive weapons such as the Scorpion's main cannon, the rocket launcher, or the Banshee's fuel</a> rod cannon.

Environments
Halo features a wide variety of environments in which combat occurs, including the human starship Pillar of Autumn, the Covenant ship</a> Truth and Reconciliation and the Flood-infested version of that same ship</a> in Keyes, ancient buildings on Halo itself, and vast outdoor expanses of varying climates, including the temperate lands of the levels The Silent Cartographer and Halo, the desert in the first half of the level Truth and Reconciliation, the winter wasteland of the levels Assault on the Control Room and Two Betrayals, and the spooky forests and swamps of the level 343 Guilty Spark. Six of the ten levels feature a substantial amount of combat outdoors.

Multiplayer
Up to 16 players can play together in one Halo game</a> over a local area network, using four Xbox's that have been connected through a Ethernet hub, but also can be played on xbox connect which is a way of tunneling a connection via a pc. The game's seamless support for this type of play, as well as a few large maps that can comfortably hold up to 16 combatants, is a first for console <a href="http://halo.wikia.com/search/games">games</a>. The PC version of Halo officially adds online play and also new vehicles (the Banshee which previously only featured in single-player, and a version of the Warthog which features a tri-barrel rocket launcher) and weapons (the <a href="http://halo.wikia.com/wiki/?s=fuel">Fuel</a> Rod Cannon, sported by the spec-ops grunts on the last level, and the never seen before Flamethrower) for multiplayer.

Blood Gulch is one of the most commonly played multiplayer levels. The level contains two buildings at either end of the level, with open desert in between. Some of the features include a cave, in which experienced players may store vehicles, and cliffs that players can use to snipe their opponents. This level is also the location for the situation comedy Red vs Blue. A revamped version of Blood Gulch reappears in the sequel, Halo 2 under the name Coagulation, and there are some similarities, but the general <a href="http://halo.wikia.com/search.php?q=map">map</a> size is increased, with added use of caves, and the inclusion of the Banshee.

Storyline
Halo's storyline is linear; there is only one ending (in contrast to other first person shooters such as Deus Ex). It is presented to the player through an instruction manual, scripted events and conversations during the <a href="http://halo.wikia.com/search/game">game</a>, and a number of cut-scenes rendered using the game's graphics engine. This method of storyline delivery is common among modern <a href="http://halo.wikia.com/search/video">video</a> <a href="http://halo.wikia.com/search/games">games</a>.

Brief summary
Halo, like previous Bungie releases such as the Marathon series, has an intricate plot.

The "Halo" in the title refers to an enormous artificial space habitat similar to a Culture Orbital discovered by the warship Pillar of Autumn, which the central character, Master Chief Petty Officer John-117, is aboard. With the help of his fellow marines and the ship's artificial intelligence, Cortana, the Master Chief discovers some of the secrets of Halo while fighting off members of The Covenant, archenemies of humanity who, presumably, wish to find Halo's secrets for themselves.

Backstory
The events which transpire in Halo's gameplay must be understood in the context of its backstory, created by Bungie and elaborated in several novels written after the release of the <a href="http://halo.wikia.com/search/game">game</a>. A summary of this backstory is presented below.

Early Conflicts
Main Article:United Nations Space Command 2160-2200: This is a period of brutal unrest in Human history in which Governments and Factions fight for control of Earth and its colonies.

As overpopulation and unrest mounted on Earth, a number of new political movements were formed including the left wing Koslovics led by Vladimir Koslov and the neofascist Jovian Frieden (which attacked the UN Colonial Advisors on the moon) and UN-sponsored military forces begin a pattern of massive buildups which culminated in the first Interplanetary and Rain Forest Wars of the Jovian Moons Campaign. After the successful Marine attack on Mars, recruitment drives and propaganda tactics strongly bolstered UNSC forces. They defeat the Koslovics and the Frieden on Earth and crush their remnants throughout the Solar System: both factions were defeated in the face of massive, unified UN military.

The Human Colonization of the Orion Arm Main Article:United Nations Space Command In the year 2291, the United Nations Space Command (UNSC) successfully develop humanity's first Slipspace drive, the Shaw-Fujikawa Translight Engine. For the first time in history, the rapid colonization of other worlds is made possible. By 2390, 210 worlds have been occupied by humans, and are being actively terraformed to suit man's needs. These worlds are to become known as the Inner Colonies. By 2490, the UNSC's fledging interstellar empire has expanded to over 800 planets throughout the Orion Arm of the Milky Way Galaxy. During this period, the planet Reach becomes the headquarters of the UNSC military, and is destined to become the most heavily fortified world under human control.

The Fall of the Outer Colonies Main Article:United Nations Space Command Cole's fleet manages a victory at Harvest, but at a high cost - two thirds of his ships are destroyed. Despite significant tactical brilliance on the part of Human commanders, Covenant technology guarantees a four to one kill/loss ratio in most battles. One by one, the Outer Colonies fall below the onslaught, and by 2535, virtually all have been destroyed.

The Spartan Project Main Article:Spartans By 2517, several years before contact with the Covenant was made, the UNSC military embarked on a secret project to create a group of elite soldiers that would deal with occasional unrest in the Colonies. Codenamed SPARTANs, these genetically enhanced troops were trained from the age of 6 into a life of battle, and became a great asset against the Covenant. While humans suffered defeat after defeat in space, they could almost always prevail with the help of the SPARTANs in ground engagements. The main character of Halo's gameplay, the Master Chief, is a veteran SPARTAN. All SPARTANS were given special armor designated MJOLNIR, which can increase their strength and speed. They were the only ones who could wear it as those without special genetic enhancements (like the SPARTAN upgrades) killed themselves with strength enhanced convulsions.

The Battle of Reach Main Article:The Battle of Reach By 2552, many of Humanity's Inner Colonies have been destroyed by the Covenant. In a move of desperation, UNSC orders a secret plan to capture a Covenant <a href="http://halo.wikia.com/search/ship">ship</a> using a SPARTAN task force and find the coordinates of their <a href="http://halo.wikia.com/search/home">home</a> planet. A group of SPARTANs, led by the Master Chief, are chosen for this mission, and board a specially outfitted <a href="http://halo.wikia.com/search/ship">ship</a> known as the Pillar of Autumn (under the command of Captain Jacob Keyes). This plan, however, is interrupted when the Covenant launch a surprise attack on the fortress world of Reach.

During this battle, Reach is overrun and glassed, and the human fleet is obliterated. Worse still, the Master Chief thinks that all of the SPARTANs but himself are killed on the surface of the planet. The (supposedly) last remaining SPARTAN, the Master Chief, escapes with the Pillar of Autumn. In accordance with the Cole Protocol, the Autumn makes a blind slipspace jump, and emerges in the vicinity of an unexplored and remarkable world.

Arrival at Halo Main Article:Alpha Halo The Pillar of Autumn exits slipspace to find a mysterious ring shaped space station orbiting a <a href="http://halo.wikia.com/wiki/?page=gas">gas</a> giant. The ring, quickly named "Halo", is obviously artificial and teeming with life. A Covenant fleet, however, is also <a href="http://halo.wikia.com/search/present">present</a>, and a subsequent battle heavily damages the Pillar of Autumn. Captain Keyes initiates the Cole protocol - all records of Earth's location are erased, and the Autumn is crash landed onto Halo. The ship's AI construct, Cortana, leaves the Autumn with the Master Chief in a Bumblebee escape pod which also crash lands on Halo.

Gameplay begins in earnest with the Master Chief's escape from the Autumn, and continues upon landing. The player will soon discover the origins and purpose of this world - and uncover a threat that forces even the Covenant into retreat.

As a literary sidenote, the ring, "Halo", borrows heavily from the Ringworld of Larry Niven and the Culture Orbitals of Iain M. Banks.

Main Characters Main Article:Characters The Master Chief: The only SPARTAN thought to have survived the battle of Reach. He is the character the player assumes during gameplay. Cortana: The Pillar of Autumn's AI construct, removed from the <a href="http://halo.wikia.com/search/ship">ship</a> by the Master Chief in accordance with the Cole Protocol. During most of the <a href="http://halo.wikia.com/search/game">game</a>, Cortana is connected directly to the Master Chief's neural interface, and acts to deliver tactical information and mission objectives. Captain Jacob Keyes: The distinguished Captain of the Pillar of Autumn, renowned for his tactical brilliance in key battles prior to the fall of Reach. He was also part of the expedition to find candidates for the SPARTAN project, the first of which was the Master Chief 343 Guilty Spark: The <a href="http://halo.wikia.com/wiki/?page=monitor">Monitor</a> of Installation 04. In-game plot The first levels of the <a href="http://halo.wikia.com/search/game">game</a> deal with an attempt to reach Halo's control center to uncover its purpose. It is soon discovered that the Covenant have accidentally released The Flood, a parasitic race which gets its name from the way it devastates potential hosts with sheer numbers. The Flood then sweep across Halo and devastate human and Covenant forces positioned on it. The release of the Flood prompts 343 Guilty Spark, an eccentric Artificial Intelligence, to try to activate Halo's defense system, a pulse weapon that, when fired, would wipe out all life in the galaxy large enough to be hosts for the Flood. Technically, that installation only has a maximum effective radius of 25,000 light years, but the pulse would trigger other installations as well, effectively killing all life in the galaxy. This system is designed to stop the Flood from spreading through the universe if they escape confinement from Halo by the only way possible: starving the Flood of any life source large enough to sustain them.

Naturally, this would wipe out Humanity as well, and so the final levels of the <a href="http://halo.wikia.com/search/game">game</a> revolve around the Master Chief's attempts to destroy Halo before it fires.

The <a href="http://halo.wikia.com/search/game">game</a> leaves the story open to further developments, with the revelation that there are several Halo ringworlds in the galaxy, due to Halo being numbered "Installation 04" by 343 Guilty Spark, the <a href="http://halo.wikia.com/wiki/?page=monitor">Monitor</a> of the installation. It is revealed in Halo 2 that there were seven (Bungie's favorite number) Halos before Installation 04's destruction.