OMG! so many questions!
Most of you're questions are answered in the Final Alert help thingie and if you're not using Final Alert then you should.
I will help a bit but if you're not using FA some of this won't work.
1. If by "survival" you are meaning one-player maps and they aren't showing up, you need to name them the right thing, look at help.
2. You change the house to whatever house is player controlled, see edit>houses to see which one, default america.
3. Make a taskforce with wanted units + infantry then make a team that includes that taskforce (you can make them veteran here) then make a trigger where the effect is "reinforcement by chrono" with your team selected and the event is "any event" which will set it off straight away at the start.
4. Look at help, for MCV deploy you have event "if building exists" or similar and action "play sound" or something.
5. look at 3
6. not sure, try making a repeating trigger with event attached to building and effect "add one-time special weapon", make more effects and add different specials.
7. I think you would need to use a mod editor like TibEd for that.
8. Use TibEd
9. Try number 6
10. Use TibEd