Osceolla

Osceolla was the main base of operations of Gammorin's (Paladin Latham's) super mutant army. It was a military compound constructed near the place where part of the Brotherhood of Steel Air Convoy crashed. Gammorin himself, as well as High Inquisitor Toccamatta stationed here before they were killed by an Eastern Brotherhood of Steel squad.

Mission walkthrough
Suggested equipment: 1 sniper rifle, 1 browning and 1 pancor jackhammer with the green bullets. This is a pretty easy mission. First sneak to the signed buildings southeast corner with your jackhammered guy. Be agressive in CTB mode. Wait, until the northern patrol arrives. Then wait again and shoot the western patrol from here. In the other building are 3 supermutant with a siren. So sneak there and kill them (2 of them are sleeping). Go north with your Browning to the fence's corner. Go either way in agressive mode to shoot the gate-guards without dying.

Go to the Zeppelin. Talk with the guy here, but he won't help you as this part maybe never finished (you supposed here to buy a map about the minefield, what are on the western and northern part of the map, signed with dead creatures as a warning).

Go to the ruined buildings with a bursting weapon, possibly in sneaking mode as here will be mutants too. Then get your browning and climb up the sniper nest. Here will be 2 mutant with SAWs. Aim first on the closer one - this saves your life. Do this in CTB. After cleared the nest send up your sniper and shoot what you can. Then stay up there. Send your grenadier to the north to throw grenades through the fence eliminating 4-5 supermutant without consequences. It is strongly advised disarming mines around as they can blow your face off if you miss throwing. Go in the camp from the south (through the western gate). This is the easiest way. Stay in agressive mode (66% will do). Dangerous point: in the small house there are 2 mutant. To shoot them first activate fight with your sniper from a real distance, otherway you will be shooted and most likely killed. Other warning: when you enter the underground part, where Gamorrin resides the gate guards corpse will disappear. So loot them before entering.

For the last part I leave it on you to find out your strategy. Although there will be some danger: first do not enter the room filled gas tanks, instead shoot them from as far as possible. Second: talk with the green mutant. Third: there is a mutant with a flamethorwer behind the bar's door, waiting for ambush. Last Gamorrin will hit you hard, so use TB, run before the door, than step back imediately.

Worse to loot: in the last room you can find 2 quest item, what worse promotion: a briefcase in a chest (it is a lpatop actualy) and a holodisk, at the top of the "western" wall (as the PipBoy says, otherway it is the southern), under the table in the room, near a chair next to the table. This is pixelhunt, but really worse it.

One last thing: Roshombo at the Zeppelin will turn to hostile after you kill Gamorrin, so you can go back and kill him too for the measley 24 exp and a yellow nuka cola. After this mission you will be able to hire supermutants.

Appearances in games
Osceolla appears only in Fallout Tactics.