More PP gain (like 2 extra PP or the highest is 4 extra pp i think).
And a "reroll" chance(either 10 or 20%) <-- might be more.
Reroll means that your units have a certain percentage chance to stay in your company after the battle, even though they got killed. "NO MY VET 3 TANK DIED" "HAHA" "MY BAD, REROLLED"
I've seen 30% before I remember.
And I had a "out of control" spawn retreat before.