they WILL throw grenades at:
Armor
Jellyfish
spiders

They will sometimes throw grenades at:
anthills
other m'w's'
eachother
centipedes

they wont throw grenades at:
soul destrovers


the word grenade can also be substituted for rocket
and will instead run and scream

actually, 5 may be better than three. gives you critical seconds so maybe some will spawn.

personally I dont count, so long as there is at least three.

Light em up. (shoot them with the turrets) Especially easy near turrets. remember to watch the bullets not the crossheirs. works well for me because they always place them near my turrets. *** *** Will cause a fire. there may be acceptable losses. Hay, at least you get to decide when it burns, inste...