Slitherine

Swiftclaw squadron leveled up and got metalstorm frag ammo which is supposed to hit all units in a squad at reduced power. I have since shot 2 gretchin squads and I am clearly only shooting one gretchin at a time.

Update: I closed the game and reloaded. Metalstorm is now working. Slaughters gretchin

I've noticed that it only works... sometimes. I don't know if that's a dice thing or what, but it clearly doesn't do it every time.

Odds of it being a random occurrence in this incidence are low. I took 5 separate shots on the two gretchin squads only only hit one unit at a time. Could be random, but low percentage chance of that being true.