Man I've been missing out lately... I still haven't bought Splinter Cell : CT and some other games that have been out for a long time.... school needs to end so I can't get a summer job and start gamin' again

I can't stop playing this game.... after I win one map I just have to play another. I wish the campaign wasn't so linear but I guess it doesn't bother me that much. Also more units and upgrades would be nice to have in a later patch or expansion pack