There are many problems with the assassins but there are 2 major ones in my opinion. 1) They get rid of half of the game. The thing that made these games great was that they were action rpg/tower defense games. When you throw an unreasonable amount of assassins at heroes, it turns into just standing in front of your towers and hoping your defenses hold up. You can't attack and you can't repair during waves because you are constantly disabled by the assassins. I've had times where every other enemy is dead including bosses, but I still have 5 assassins left. It forces people to play like t