I think he looks like the character from the game, which is good, but something to consider is that Republic Commando DEFINITELY didn't go for realism throughout. NOt to say that I don't like the Clone designs, they're supposed to be unique and bulky actually, and their gun in the game is a modular design that has pieces that snap off and snap on to make it a sniper rifle, grenade launcher, etc... It's definitely not an Stormie rifle.
That said, the game's designers had a cartoony look to a LOT of the game. Geonosians didn't look like in the movie. Trandoshans were comically big or short/squat. Wookiee's were freaking massive at all times, no variation in size. And of course, Super Battle Droids were practically indestructable while in the film they dropped like flies, and BD's/SBD's seemed to have a cartoonish look to them rather than a film accurate look.
Basically the game didn't do shooters much justice I felt. It was an ok game, but they threw realism out the window whereas games like Jedi Knight, Dark Forces, X-Wing/TIE Fighter, and the like all strived for utmost realism based on what they were able to acheive with gaming engines.
Given what realistic games I've played on X-Box, Rep. Commando was going for a bit of a "kiddie" vibe, trying to make colorful characters, oversized enemies and the like while keeping gameplay kind of cool. In the end, I don't like the look from the game TOO much.
I do like the figure from what I see, but if he's lacking articulation (and for some reason I have a strong feeling he is), that'll be what nixes me wanting many of him. Hasbro could really wow people with the Commandoes if they wanted to though. If the gun actually snapped apart, that'd be rocking... Without some super articulation though, they're gonna blow I'm afraid.