getting units to jump from damaged plane

[marcinko]

I want to have my units jump from a Dakota transport plane after it's been damaged in my intro.  I want to initiate this with a trigger but I'm not sure what the right command lines are to do so.  I've got a script to get them to jump, i just don't know how to tie it in with the level of damage the transport plane is taking.

[Mr.BoDean]

Howdy Marcinko!
  You can use the getdammage command for that. Generally ,the value is between 0 for 100%health and 1 for dead.  ;D

So in a trigger:

Condition: getdammage PlaneName >= 0.3   (where 0.3 would be 30% damage ...and no, I didn't misspell getdammage   )

OnActivation: [] exec "JumpScript.sqs"