How do I ?????

[[40oz]-Talon]

I can make a map somewhat good.. and have plenty of ideas, but how do i make the map like (King of the Hill ?) or Team king of the Hill ? how do i set objectives?, Like say if i wanted to hold the top of a tower for a specific amount of time (king of the hill) and hold it as long as i can w/o dieing.. or.... destroy certain objects to win the round..

Another twist is what about a Defense and Offense squad say if someone is guarding an escape point (trigger) How do i make these ?

Plz help or point me in the right tutorials ..

TALON