Crystal kills 5 grenadiers with her ice balls. Tao would have to make her way up the cliff before she could attack and this is very hard to do (this goes for all melee characters).
Kanji fries 3 of them.
Pyro does no damage since he is not in range. Bane takes quite a while to get to where he wants to be (aka, your attack will take effect next round).
Twilight killed one enemy.
The shock of what Cloud does makes several grenadiers drop their grenades all around Cloud.
Jacques manages to shoot two enemies, his bullet penetrating the skull of the first grenadier and sending it into a second one.
OOC: @Furi: One attack/move per turn. 14 grenadiers. Group two, go.