Is Badlands II way too hard?

I just wanted to ask some people this, but would anyone agree that Badlands II is way too difficult for the payout? The Cowboy is an alright Tower, but I don't think that justifies the difficulty of the mode. For example, me and my friends tried beating it, but we couldn't, even though we had Accelerators, Minigunners, Commanders, and Mercenary Base(s). I just... feel as if Badlands II is way too hard for the reward you get at the end, especially the fact that Gunslinger has 600k health, and those Calvary guys who appear and stun your Towers. What do you all think?