Ok maybe i shoudl rephrase,(readingmit myself and i dont get it XD)
i know how to change how much time it will take with little exlosions befor the grand boom
but what i want to do is
Instead of going Evac first, It goes into the explosion phases (Check the Mission HWere You go up agasitn MEcha at earth, lots of ship there, notice none of them goes in evac, they just explode after the 40% health left)