(only if such an option as "Arena mode" (you dont respawn after death) is implemented)
Juggernaut mode
Juggernaut mode is a game submode, meaning it can be played along with any other mode, although only "hardcore" modes would make sense (Last Man Standing etc.).
In Juggernaut, there are two teams, as always, BUT one of the teams has only one member. Which makes him highly outnumbered by the other team.
Or does it?
The lone player, known as titular Juggernaut, starts with much more health (probably a few good hundreds, if not thousands), and a more powerful version of his chosen weapons. And those are:
a) Rifle --> Sniper Rifle - with pinpoint accuracy and an ACTUAL scope, it's pretty deadly weapon.
b) SMG --> HMG - while only deployable, this weapon has incredible rate of fire, probably doubling that of SMG. Has a reasonable spread, though.
c) Shotgun --> Auto Shotgun - truly devastating, yet has high recoil and as its smaller cousin, pretty luck-based...If Shotgun would be brought back to its previous accuracy and damage, Auto Shotgun would stay with dice [;)]
And so up to 31 players (or even 63 when allowed) can face the titan, and they win instantly upon his death. But if the other team is all dead, then Juggernaut wins (that's why hardcore is needed).
Juggernaut's health would be scaled depending on amount of players on the server by use of some clever formula I have no idea about. So on 4 players server he isn't as devastating as he would be on a full 64-slots server.