Empires, the award winning Half-Life 2 mod, combines the best of the first person shooter and real-time strategy genres. Fight as either the Northern Faction, remnants of the fallen nation of Jekotia, or as the imperial Brenodi Empire. Empires features:

bgriffin says

10/10 - Agree (6) Disagree (1)

Awesome mod that combines FPS/RTS. 4 Classes: enginner, rifleman, granadier and scout. You can play as any of them or also as a commander. Each class requires some practice to master. Learning curve is steep though but once you learn it, it becomes extremely addictive.