The people in Remnant are minding their own business, enjoying life together- doing whatever. Until, massive red portals open up in places all over Remnant, with demons of all sorts appearing through them and tearing through the lands.

From Imps appearing on land to the giant Icon of Sins making an appearance in the water, they're all ripping apart Remnant and making it their home. The last things to appear through the portals in Vale and Mistral, is the Dark Lord and Khan Makyr both leading their own army. All hell breaks loose while Atlas and the White Fang, surprisingly, forming an alliance together to take on the demons from hell.

Team RWBY and JNPR are fighting the demons together, which obviously for them, is tough. That's until a regular blue portal opens behind them, with a green, heavily armoured jacked marine all stacked out with weapons appears behind the 2 teams with a short double-barreled shotgun in his hand.

Marine like the Doom Slayer or Huntsman/Huntress? Name: Weapon(s): Semblance (If RWBY was selected): Ally or Enemy?