default 0 The one and only default debug campaign 0 GameMenu worlds/Menu.oxw 1 1 2 Demo Mountain Lake worlds/sp_demo_mountain_lake.oxw 1 2 3 Level1: Ambush at Jupiter worlds/sp_level_ambush_at_jupiter.oxw 1 3 0 Multiplayer Arena worlds/mp_level_arena.oxw 1 4 0 Desert worlds/desert.oxw 1