tip for the sniping challenge - while you're watching the bullet you just fired go to it's target, move over to the next one. this will save time you would normally take AFTER the reload to identify the next target, and maybe even remove the time for aiming altogether! (remember - you still need to adjust for wind!) i did this and got it on the second try.
also, use this saved time efficiently - don't go from a target all the way to the left to one all the way to the right - choose one nearby so you can aim right at it and cut out more aiming time.
PERFECT GUIDE (1.1). First, upgrade your main gun to {Damage(4), Firerate(3), Speed(3), HP(0)}, and then your drones to {Drones(5), Dronerepair(2), Dronerepairrate(0)}. If your health falls below 50%, start upgrading the drones before the gun. After all this is bought, buy one more fighter from your fighter bay, then max your gun all the way. After gun is maxed, this should be about the start of ch5, buy the other three fighter bays and one extra fighter at each bay(so that you have a total of 8 fighters). After this, max your drones all the way, then start buying rockets. Buy the front two, then buy one health upgrade each. then just upgrade your fighter drones 'till the end. This is the best way to go, just DON'T FORGET TO LEAD THE TARGET, also there is a little luck involved so don't lose faith. PLEASE KEEP THIS POST ALIVE It works!
PERFECT GUIDE. First, upgrade your main gun to {Damage(4), Firerate(3), Speed(3), HP(0)}, and then your drones to {Drones(5), Dronerepair(2), Dronerepairrate(0)}. If your health falls below 50%, start upgrading the drones before the gun. After all this is bought, buy one more fighter from your fighter bay, then max your gun all the way. After gun is maxed, this should be about the start of ch5, buy the other three fighter bays and one extra fighter at each bay(so that you have a total of 8 fighters). After this, max your drones all the way, then start buying lasers. Buy one laser, then max it before moving on. This is the best way to go, just DON'T FORGET TO LEAD THE TARGET, also there is a little luck involved so don't lose faith. PLEASE KEEP THIS POST ALIVE It works!