Tech tree for troop weapons

[Sardia]

narf poit chez BOOM said:
Severity: One of your stars is going nova.

Frequency: Three of your stars are going nova.

That would be a catastrophic, no? Is it worth playing with these event settings? I've tried it and all its done so far is to occasionally make a ship lose all its supply and ordinance. Not that big of a deal, but quite a hassle in between pitched battles.