such a great game, played it when it first came out and had a blast with it, although it was kinda spooky for me back then when i was still a kid, i remember how realistic the skeletons of the shredded soldiers seemed and how the enemies would coordinate to flank you etc and using the gun that shot huge nails was awesome with ragdoll pinning enemies at the wall
played the two expansions for the first time recently and they have aged really well, but i haven't cared about the 2nd or 3rd because i heard mostly negatives about them