Wich was fine, cause maps in Back to Ubersreik were from V1, so they needed to justify it narratively.
It’s a ladder mode with modifiers that has no replaybility values. The fact they improved chunks to full maps and didn’t separate weapon progression, well it doesn’t change its essence.
For such mode to work you need a longer progression and deeper itemizations system with cross progression to normal mode.
Something like:
You stuck at Havoc 20 → go play normal games, earn better gear → come back to Havoc → beat Havoc 25, earn unique cosmetics or weapons with unique blessings → use it in normal mode. /repeat
Maybe unique currency you can use for something, even premium currency for beatin Havoc 40 every season. Also seasonal updates for Havoc (i doubt it will be)
When you have separated modes that just split playerbase and don’t work like closed system with the core mode it’s bad, it was fine 15 years ago.