If your opponent has a Vet3 Riflemen at minute 7, you clearly did something wrong with the game and probably deserve to lose the match. Quite a L2P problem there.
I've heard the "if X, you clearly did something wrong" for like the 2183982839812983912983th time now. Idk if this is constructive at all and is just insulting, its basically L2P in a slightly less offensive way.
Vet 3 at minute 7 is very possible, especially with +30% increased veterancy and even more especially when you equip with dual Bazookas, or if you've Riflenaded a Luchs or Kubel a few times.