From Halopedia, the Halo wiki
Paradiso is a map variant of Forge World. Built on the Island, Paradiso features two bases at either end of the horseshoe of the island, with a large neutral building and raised catwalks along the cliff face in the lowest part of the horseshoe.
When starting a Slayer match on Paradiso, if you get to drive the tank beside your base, wait for a moment, as the opposite team's Banshee will probably fly over the middle of the map, exposing itself to you. If you can destroy it, your team will have a lot less trouble when traveling across the map.
Alternatively, if you happen to get a Banshee at the beginning of a match, stay on your side of the map until the opposite team's Scorpion is at your end of the map. then head for the other end of the map. Also, flying a Banshee low to the ground and on the outskirts of the map is much safer then to go above the mountain, as you can prevent a lot of small arms damage.