I played hours and hours of it, networked multiplayer version, with my work colleagues .. it was part of our regular TGIF team-building exercises, among a few bouts of Descent2, some Warcraft2 and the odd Quake .. ah, halcyon days indeed .. we all had our joysticks at the office, lol.
Delta force 2 for me [1]! The only real problem with it was you could see characters as moving single pixels across the map...and hit them without too much trouble.