https://schaken-mods.com/forums/topic/86494-skyrim-wwii-overhaul-the-great-patriotic-war/
spoiler
Inspired by Call of Duty: World at War, and Company of Heroes 2, this mod brings WWII into the world of Skyrim, making Skyrim's Civil War into the bloodiest wars in history - WWII on the Eastern Front, also known as "The Great Patriotic War".
Civil War factions have been replaced with WWII Eastern Front Theater factions (Red Army/Wehrmacht). There are two versions of this mod, pick one based on what you think is most suitable:
Version 1 - Imperials (Red Army) vs. Stormcloaks (Wehrmacht) Version 2 - Imperials (Wehrmacht) vs. Stormcloaks (Red Army)
Over a few hundred squads of WWII infantry now roaming Skyrim, engaging in epic firefights all over the place, that you can watch from afar or decide to take apart in on a glorious campaign, fighting with your fellow soldiers as you march from city to city.
The way you play now changes, as your enemies are most likely now wielding rifles, machine guns, submachine guns, grenades, and rocket launchers instead of bows/swords/axes/maxes/shields. Take cover from afar and snipe your enemies, or rush in with grenades or SMGs to do the job.
If you progressed through the Civil War questline, you can become a commander and lead your own infantry squads into battle.
Sound effects are realistic and high quality, uniforms/weapons/squad organization are historically accurate, and eight voice actors have provided over 800 new custom lines of WW2 related dialogue for Red Army/Wehrmacht soldiers to make battles feel much more epic and historically authentic.
Was hoping it was more like GATE where both the Wehrmacht and Red Army enter a fantasy world through portals (rather than WWII but in the terrain of fantasy Scandinavia). That would be a fun concept.