I found a cheat!!
At least.. It's more of a trick I guess..
If you start a mission, do not finish the mission!!
Instead, almost at the end, buy some upgrades you can afford.
Then, save!! Now all you have to do, is reload your save-game.
You'll still have the power-ups but you still have to do the mission..
This may sound stupid because you'll have to do the mission again..
BUT!! most of the times finding enemy's in a mission isn't so hard, so you'll get exp easy..
So that means easy exp!!
I figured it out on the mission of the bridge (the escape) so maybe it doesn't work later on in the game..
Let me know if it works for you!!
- Darko







