On level 7 the enemy had 2 level 3 beetles in the nest thing, and I had 1400 in mine, constantly attacking while enemy had 2 beetles. I used up all my guys. Too hard?
(BTW, I ended up killing them after saving up around 3000, and beat the queen, just wanted to tell you about it...)
The guide going around doesn't work. I was getting more than I was supposed to each day and I couldn't afford the 3rd glider. I double checked it, also.