Starship Troopers Missions
These are short missions with a clear objective and, usually, a strict deadline to accomplish it. These are good for spending an hour or two trying a new class or simply getting familiar with the game system.
Basic Training (1-8 players, level 1, duration 2-3 hours)
Undergo the minimum training required to be an effective member of the Mobile Infantry. These are customized missions for each playable class.
Missions from the Pluto Campaign (4-8 players, level 1-4, duration 2-3 hours)
The 11 missions from the Pluto Campaign can be played individually. Spoilers not included.