Are there any Mods that improve the Swat team's AI? I just finish the auto parts and computer facility missions and the AI is brain dead. They will wand a door. See an enemy on the other side of the door and when they open the door get shot in the face even if I tell them to flash and clear. Or I have to have them stack up and manually open the door and kill the enemy but then they don't come through and clear the corners. Any way to make them react faster or smarter in these situations. Like one guy opens and automatically fires at the first suspect and the rest flash and clear?

Nothing for the default game, however the SEF mod is the only mod for swat 4 so far that actually modifies the core ai files and improves the swat team ai greatly. V5 also looks like it will have some more improvements to them as well.

However it is a full game changer type of mod.

http://www.moddb.com/mods/swat-elite-force

Does this mod work only on the TSS expansion? And can I use it to play the original campaign?

It launches via a separate .bat file and combines both campaigns together. It is by far one of the best mods for swat 4. It improves the vanilla game tenfold!

Can I continue from where I left off in the vanilla game?