(old) How to level up fast
I recommend you use a tesla hover with plasma as a backup weapon, if you do not have any good tesla hovers you can buy Thief from the CRF (search LordForce) and add a radar on the bot so that you can see the enemies on the map.
It kan be boring to kill hundreds of enemies so make sure you have a bot that you like to play with.
3. "Level up"
When you exit the singleplayer mode you will get the loot and it will show how much CPU you have after the levelup, while you are in the battle the signs will show up faster than you get levels, if it shows that you have got 4 levels you have only got 2.
You need to do the same thing again and again...