Fiestafight

Fiestafight was a Halo: Reach Firefight gametype. It was featured in the Firefight Arcade playlist. It allowed players to use the Armor Ability of their choice, but every time they spawn, their weapons were randomly selected, as in the classic Oddball variant Fiesta. Unlimited ammo was enabled, and to make up for the random weapons, player weapons did more damage than normal.

This gametype, while still usable in custom-game-firefights if saved, no longer exists in the playlists. When 343 Industries consolidated Firefight Limited, Firefight Arcade, and added a multiplayer Score Attack in the Firefight and Firefight Doubles playlists, all differing types of Arcadefight were removed except Arcadefight, and Arcadefight NEP was added. (Fiestafight is again available in Halo: Reach Score Attack, 2014).

Tactics
Since weapons are randomly selected, it is very difficult to choose an Armor Ability, as it may prove less-than-helpful with the guns you are given. The Jetpack is usually a good choice, but if you spawn with a Spartan Laser and a Sniper Rifle, it won't do you a whole lot of good. Similarly, Active Camouflage won't be particularly useful if the game spawns you with a Needler and no secondary weapon. For this reason, it is generally a good idea to choose Sprint. Sprint's ability to get you from Point A to Point B faster is compatible with most weapons' strategies, and will also be useful for moments when you need to retreat so your shields can recharge.