for the first question it might be usefull if you give an example of what you wish to delay, or how you want the
countdown/timeout exactly.
the second one:
okay let's say you want bravo to attack the uaz when it reaches a certain point, or after some event.
in both cases you need to set some condition true, for example the UAZ drives into the target area trigger setting uazpresent=true.
then have another trigger, with uazpresent as condition.
have bravo be around somewhere, with two waypoints, one is close to them, a move waypoint, and one is at the UAZ/target area.
then synchronize the second trigger (with uazpresent condition) to bravo's first waypoint.
bravo will MOVE to waypoint one and then wait till the condition is set true. if it is, they will continue to their next WP, on which you can make them attack the uaz with dotarget and dofire commands.
I hope this helps a bit
MadFred