n my opinion i think their very hard and takes most of your ammo hitting and trying to kill them, but the thing is im not a lvl 30 yet im a lvl 13, and i need to know wat would be the best kinda gun to kill them with because i dont have much ammo left and i need some help and i only have about 15 stimpaks left but im mostly using a mini-gun, combat shotgun, alien disenagreter, and thats about it with wat im using to kill the abamanations with but i have alot more guns and not much ammo like i said (well alot of ammo for the alien weapons) but all i need is your opinion and some help if you can give me anything it'll help!!!!