rating has to be edited for that to work, I have theorized something around it but haven't bothered to make it work.
Cause I'm an engineer for measurement.
Think a best way to do it would be to introduce a "weight" to kills and measure it by comparing the scale of each team's investment.
if one team invested 20 000$ in one round and other team invested a 2000$ that could be used as a weight (or rather a sum value of team's gear at the moment when the round starts). I do not think it's a simple 2000/20 000 and we multiply rating with that - but stats from force buy wins and just how many eco rounds are won on average could be used to craft a reasonable formula.
Would probably be best to devise a separate stat for that, eco impact to showcase player's capability against economic adversity.
Economy is a huge part of the game, it's sad we don't have stats for that and we keep it low key that players are farming stats.
But yeah, my rant aside, Nexa is a great fit for Vitality, role wise, calling wise, mentality wise, from my pov everything fits. I know flag checks out, but he's a good IGL and having him and Magisk managing each side of the map sounds formidable.