Progressing through the campaign means adapting to ruined cities, alien strongholds, and encounters that require different weapons or vehicles. The complete game is unlocked in this modified version, providing access to all ten single-player missions without a trial-level restriction. Each stage still needs to be completed through normal gameplay, with shooting, movement, and vehicle controls remaining under the player's command. Online multiplayer is available through the version's multiplayer menu, although successful connections depend on network and server availability. Full-game access does not provide infinite ammunition, invincibility, or automatic mission completion.