I honestly think that this game was completely underated and that people should at least give it a try.
User Rating: 8.5 | Warhammer 40,000: Fire Warrior PS2
Gameplay 9/10 Okay you may just look at this and be like ok it's just a regular sci-fi first person shooter. IT'S NOT! I think that this is very fun to play. It has interesting high-tec weapons at you disposal (that are original) and interesting enemies also with original weapons to fight. There are also other parts such as stealth and big boss battles. Graphics 8/10 The enviorments look really cool and detailed. And there are also many. There is good shadowing on your characters hands and gun which some other games (its still good but the first Halo) don't have. Sound 8.5/10 These are the sounds of future war. Tons of explosions, plasma and bullet rounds going off. The music is also pretty good. Story 8.5/10 If you are a fan of the tabletop dice game Warhammer 40,000 like I am you would know that some of the things that happen in this games story are interestings and uncommon. for example one of the important people with the empire being allied with the chaos. Overall 8.5/10 You really should at least rent this game. 
