in the tutorial u are trying to hit the target behind the wall in the firing range it is not glitched u just go to the sandbags by the range and then follow directions to throw the grenade
o yea just beat cave of trial 5 this game is great once u get used to it i prefer this one over the first and the second since this one u can have a greater variety of units in your army
 "UPGRADE COMPLETE!"){kind=icon}
 "Endless War 4"){kind=icon}
 "Epic War 3"){kind=icon}