There is a lot of different ways to get a unit to jump.
Like for my failed FPSish map, I made him jump in an arc-- changing unit movement height every increment of time.. (real small increments.) Calculate speed for distance.. ETC. For easyness though, and crappiness, just do:
event: whatever you want to trigger it
condition: isn't currently jumping (use a boolean variable)
actions:
set is jumping = true
change unit movement height to (whatever)
wait
change unit movement height to default
set is jumping = false
That's the crappiest, and easiest, way to do it. | 
