Easy George, Caliber knows this trainer pretty well, he created it. Nah, there's apparently a discrepancy in the instructions like you should press F1 after your commander lands and for every new battle you start.
You should read the Trainer thread here, maybe from most recent post backwards:
[Edited by element5, 4/10/2016 11:44:56 PM]
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem