This is kind of a "Crisis Zone done right" situation. It's mostly the same core—you're a big guy with a shield and a full auto machine gun mowing down hordes of enemies and destroying every bit of the environment in sight—but with a higher fidelity presentation and one important change on the gameplay side:

Enemies aren't bullet sponges in this one. That's the big thing that pushes it over the top. Every enemy in Crisis Zone takes just a little too long to die, but never had that issue in Razing Storm. It's just pure big dumb explosive nonsense. A fun time.

Just stick top arcade mode. Avoid the truly horrendous "story mode".