Easy to play!

I found a easy way to pass the first map! Along the exit, the first line build the gatling tower, it has more HP than others, also ,its the cheapest. then ,the second line build the missile tower, then the third line build the laser tower, it has the high Damage, so the enemy can not attack the laser tower easier. the last, around the base, build some gatling tower and the cannon tower to defense the airdrop enemies!

Archibald@#$@ about Enemy Alert!