Randomize "Alive less than" within predefined limits?

[Bahger]

I have three groups of 10 red tanks. Blue forces engaging each group are triggered to advance when each group is "alive less than 21%", i.e. when there are only two tanks left. I'm wondering if I can randomize this condition in the trigger setup, so that the trigger will fire randomly as long as the unit it applies to is "alive less than" between 50% and 20% (i.e. between 5 and 2 tanks still alive.) Can this be done?

[Grimes]

Once>Time Less than 2>Set Flag 1 Random Value from 2 and 5

 

Once>Flag 1 Equals 2 AND Group Alive less than 21%>Do Action

Once>Flag 1 Equals 3 AND Group Alive less than 31%>Do Action

Once>Flag 1 Equals 4 AND Group Alive less than 41%>Do Action

Once>Flag 1 Equals 5 AND Group Alive less than 51%>Do Action

 

Simple as that.

[Bahger]

Excellent! Thanks yet again, Grimes.