Ok basicly on my map im currently making i want it so the marine's blow open a door or a wall.. then storm in to the building say.. 3-4 at a time. I can figer out how to do it so you look at a wall.. then the wall blow's up ... all this junk flys evreywhere.. matix style but i get stuck on how to make it so that after this the npc's storm in and start shoting away at you.. I cant figer out how u delay them from spawnin.. say wall blow's up 1 secound after combine's run in shooting at you.. etc if someone can help me with this i would be most greatful im reallllly trying to get a good map sorted out and ready to play. So I can relase a hl2 style map out there and be proud of it! so if anyone has any good tutoiral links for anything.. that would be usful to me that would be GREAT thanks!