Mechabreak needs ranks tied specifically to the mechs, and not overall

This is one of my biggest grievances with the game. I went all the way to Diamond with Luminae supporting my team. Now whenever I want to play any offensive striker, I get diff'd so hard by the enemy team, as I have essentially 0 practice with them in real matches. It's so rough trying to learn to play Welkin or Falcon when I'm facing Diamond-level Falcons or Welkins that deserve to be playing at that level, whereas I'm only Diamond-level because I played supports and nowhere near good enough to be Diamond-level offensive wise. And the worst part is that you get heavily punished for trying to learn how to play in the "casual" mode, since you get no mission credits for playing which blows and kills off any incentive to spend time in the mode. If anything, I think ranks should be tied to the mechs itself. If you reach Grandmaster with Welkin then you're probably not a Grandmaster-level player with Luminae since it's a totally different game. Same for the reverse