Played it again. It's pretty easy to get all the way to day 40. Repair after every round, don't bother with any pistol upgrades. Get the medium vest when possible. Get an smg before the first EOD comes on. After that get an M4A1 and Airstrikes. Don't bother with grenades.
Repair didn't work for me. Says it is half round number but it's always at zero. Needs a save. Snipers need to be a bit stronger and smarter (seriously in front of the heli? Really??)
140 jumps got all upgrades and killed worm and monkey. Best thing to do is get bat early on and pole vault. Get rocks + speed upgrades to max. Only other stunts that are good is dumpster dive, hang-glide and doing 360 or 720 flips if altitude is high enough (above 500 feet)
Total hack but you can get lots of points first few levels by getting one repair guy per level and leaving the last enemy alive and have the guy repair until max level (7). Do that for 3-4 levels and you'll have plenty of troops.
Most likely the maint is taking longer than expected. Give it another hour ... Maybe by 11/19 at 1am Pacific it'll be back up. Ofc I'll be sleeping ^_^
Got all the achievements (without cheating) except for fly 2 minutes... I've flown more than two minutes and still can't get it. Easy way to get achievements without cheating -> buy coin / $ / balloon armor upgrades while staying at less than 2k feet. Then at the last minute (after getting 5 hits balloon upgrade) then save up and get the lift upgrades (to 360 meters). Instant achievements.
 "Chaos Faction 2"){kind=icon}
 "3D Buggy Racing"){kind=icon}
 "The Final Death Wish"){kind=icon}
 "Great Game 1/5"){kind=icon}
 "Heroes of Gaia"){kind=icon}
 "Snipedown"){kind=icon}
 "Weapon"){kind=icon}
 "Infectonator : Christmas Edition"){kind=icon}
 "Shopping Cart Hero 2"){kind=icon}
 "Endless Migration"){kind=icon}
 "Dale & Peakot"){kind=icon}
 "The Last Frontier"){kind=icon}
 "Red Storm"){kind=icon}
 "Higher!"){kind=icon}