Space Hulk: Vengeance of the Blood Angels is a mix of a First-Person-Shooter and a tactical fighting game. It is placed in the
Warhammer 40k background of the Games Workshop tabletop games.
It is the successor of the PC game Space Hulk from 1993 and it tells of the fight between the Terminators of the Blood Angels Chapter of Space Marines and the Tyranid Genestealers.
You control up to ten Terminators. You give them orders in a tactical screen and/or take over one of them and then move in a 3D environment and fight the Genestealers just as in a First-Person-Shooter. So the game includes tactical planning and fighting in a good balance.