Boss problems

On the third (I think) boss, where you have to kill the guy in the helicopter, It seems that you need a launcher to actually do damage. And to get a launcher, you have to cough up some gold (which is already hard to get unless you buy 100 gold). So what Im asking is can you make him easier to defeat with normal guns? Or maybe make a 20-pack of gold purchase for a lower price? Just to get the launcher. Otherwise, pretty cool game!

PunkRocker333 about Frontline Commando, v1.1.1