To make the make better, why dont you make blockers more powerful. Let's say From 1 to 4 nothing 5: 1 taken-goblin 6-8: more powerful tg 9: 1goblin 1 hobgoblin 10: taken-captain 11-13: same as 6-8 on tc 14: 1 tc + 1tg 15: 1 taken-knight 16-18: more powerful tk 19: 1tk + 1 tc That way you could force sentry's to do its work, collectors as well, etc. You could open new posibilities to go (e.g: reaper-sentry, so everytime my team deposits they can refill themselvs, etc.) Btw increase difficulty on the high blocker, cause medium is better.