Heavy Engineers with brens rape obersoldatens that are upgraded with lmgs no contest. Think about that for a sec. A 210mp unit raping a 400mp T4 unit.
I wished dual equipping rear echlons with bars or .30 cal lmgs would turn them into unstoppable terminators.
But that's a whole nother issue.
IS aren't really even that bad. They are just bugged and kinda obsolete for their roles. I don't think relic ever intended infantry sections for dps. I think they were delegated for recon roles. That being said, commandos/royal eng with brens could use a nerf while buffing IS. Give them more utility (AT nades for a starter) smoke, whatever.
I dont mean to be rude but this seems an awfully uninformed post. Do you have the actual figures to back that up? I personaly believed based on the numbers I saw once and ingame experience that as I posted, RE and Commandos do less med and far range dps than IS with brens due to the other 3 members beeing useless. And if a triple lmg RE does beat obers than that is a on vet 0 since obers get mighty offensive and defensive vet whilst RE only get defensive and heavy engineers pay for it with the speed of a snail making them extremly vulnerable to many other sourced than inf. But as you said thats another topic. I still dont think that RE can replace IS with brens equipped, especialy not once vet works again but I would love for some1 to digg out the numbers.