Also, don't bother with the anti aircraft guns, as long as you have some high grade quick firing guns and some high level pellet towers, thats all you need.
Make sure you have some frost towers every few squares and quite a few rapid firing turrets every few squares too. With the spaces in between, fill them with level four pellet towers (not level 5 because A-They cost too much for too many and B-Level 5, they become snipers and fire less rapid shots) but also make sure you have a few sniper towers.
You only want a few missile launchers too, they are expensive and too slow to do any real damage. They are only good placed far apart because they have long range and can take a bit of health from a huge distance.
I'm going to go do some more crying.







