I'm not the first in the comment who says that the current version is to ez, therefor, it is very long and sometime boring before feeling any treat. I really believe it is because of the way artillery is too accessible.
If the artillery player were not doing each around 2k kills .. I think the challenge would start to show.. but you can't take them out and the artillery gamer will never leave thier meet grinder event if it ruins everyone else day...Also cause it is a cool mechanic loved by many player but if at least they were long to build and ez to destroy or if we had only balista for the first flags and explosive catapult only at the last moment idk... im no game developer.. so lets talk about that!