Yeah, let's nuke it!
This game combines tactical shooter and headless Quake-a-like FPS. You might get it done with just running forth with your modern suit, but the game gives you more if you crawl with the suit's invisibility cloak activated and use all of the suit's options to get a rid of all the hostiles.
The more you play this game forth the more you will enjoy it. There's just so many things you can use to play this through, like building something useful things from all the obstacles avaible (like in HL2, you know what I mean), driving your car through enemy base and so on.
One thing that especially was negative in this game, was that, when you were in the bushes hiding, it felt like the enemy could see you, but you couldn't spot the enemy. !CLOAKED!. The storyline seemed good enough to this kind of game, except the last few chapters when the yankee admiral wants to nuke everything and you got to nuke everything, IT WAS SO PREDICTABLE! And you knew that the thing will absorb the nuke and spread, BLEH, well gotta go with the flow...
Overall good game indeed. Sure I wanted to save the prophet from the island at the end, but I think that'll be another story.