Delta force has okay multiplayer.. but the single player is horrible, nutmeg has a higher IQ than the AI in that game they don't even shoot AT you in 1-3 , they are programmed individually by scripted events to shoot NEAR you when they see you in a mission , all you have to do is recognize the general area bieng shot at and avoid it and the entire game is easy .
SOF2 multi and single player is a bit better... but still boring and repetative compared to a good game of Counterstrike , raven shield or BATTLEFIELD !