Concussion grenade has Blast Power 6, Damage 1, Crit 2 for 600 birr where the Frag grenade has Blast Power 6, Damage 2 and Crit 1 for 500 birr.
Thye both have the same radius and I can`t think of any mechanical reason why anyone would get a more expensive concussion grenade over the the superior frag grenade.
Is this an oversight or am I missing something?
If they had Concussion as Damage 2 Crit 2 and Frag as Damage 1 and Crit 1, you'd be choosing between knockout power vs wounding power at least.