the trick is that you actively need to be switching if you want to play all aggro and shit. So, use speed to get up close, switch to strength, grab and throw a guy, switch to armor and get behind cover, switch to stealth as the enemy runs after you, back to strength and throw him, etc. The reason why Crysis is so awesome is because they give you so many ways you can approach a situation. You can even just drive a car into the base, get on the turret and blast them all away. Or sit way away from the base and snipe everyone using tranq darts. Or pick up a chicken and throw it at the enemy until they die.