Base against base, from clubs to lasers.
Thirty battles with their own rules, then the road splits three ways before the final battle. Each has three stars to earn, and every new star is a medal to spend in the Barracks.
Earn medals from campaign stars and battle wins (Easy 1, Normal 2, Hard 3, Brutal 4). Pick a general, buy perks up to level 3, and take up to three perks into each battle. Generals level up (to 5) by leading battles: a win is worth 2 points plus the enemy level (3 in the campaign), a loss 1.