-- Moth Repair Shops
1) If you're under fire, don't try to get to the nearest repair shop, but to the nearest tunnel. Tunnels will slow the AI pilots down and give you a lead. Go from there to the nearest repair shop.
2) Pay special attention to the positions of Flyer's Retreat and Breaker Maker 2. They are very near each other with only the Gamma/Downtown tunnel between them. Use this tunnel to evade attackers and go the one in another crater.
3) Buying your own hangar gives you free repairs -- if you get there. Don't take too many chances if your structure or engine are low. Duck into a repair shop and get just enough repairs to get back home where you can get your Moth back into ship shape.