You don't find Don't Be Defeated By. A Friend to be god tier?
Giving it a relisten now; this is probably one that I've heard the least so far in terms of battles which is why it slipped my mind. It's definitely fantastic, but doesn't sound quite as grand or blood-pumping as Eliminate Crisis, so not quite god-tier.
Since this is a game about military students, I was hoping for a bit more of a military edge to the soundtrack like something you'd hear out of Valkyria Chronicles. You know, leading trumpets, snares, etc., but that's just my fan bias. I love the rock and synth of JDK too much to criticize for no reason.