Random thoughts/things that could be improved in Just Cause 2

So first off, I love this game. Its like GTA + Crackdown + Bionic Commando. Now some things I wish: 
1. When you buy something from the supply guy, he drops it off and leaves. So you cant buy multiple items without calling him back for each thing. Dumb. 
2. When you call that guy in to extract you to some location, it doesnt keep your waypoint or missions visible. I understand that you can only travel to the locations you have been to before, but I would still like to see those things for reference. 
3. I wish you could pick your default stronghold that you spawn from. 
4. People are right, why is there no multiplayer or co-op?!? 
more to come.