Many games out there require thoughtfulness, planning ahead, strategizing, plotting, countering, sidestepping, and all sorts of brain-exercising activities.
Let me just start off by saying, Frag is not one of those games.
Billed as "A first-person shooter board game," Frag is fast paced, action oriented, and light on depth. If you could take Halo and make into a board game, you'd probably end up with Frag.