TheLoneSurvivor wrote:

A advanced form of Nazis that were remnants and started growing in population in a vault. and after the war they were trained enough and invented more powerful guns and gadgets. Play a similar role as the legion taking prisoners, destroying towns and using slaves but also like wolfensteins nazis having advanced armor

This.

Mercenary Group, like the Comps of Jorvaskr from Skyrim.

raze4573 wrote:

We never got to know what exactly what happened in Europe, Russia, Asia, Middle-East

Exactly, as of right now we can only assume that the U.S. did "Win", but I really would like to see what happened to the rest of the countries. If they got it hit just as bad as the U.S. or worse. I definitely would like to see a Chinese faction, and maybe be able to tell us what exactly happened to china.

Seeing as how the Fallout timeline splits from our own after WW2 I would love to see some factions who have taken on old world sports teams. If the next game is in Boston you could have the Fallout version of the Celtics vs the Fallout version of the Lakers. Great way to tie in the NV storyline, for those that don't now the Lakers play in L.A. which is in Cali home of the NCR. The Lakers fans come to Boston for reasons Bethesda will explain. Also you could play in a game with the two teams. Instead of basketball though it's a gun blazing shootout in a basketball arena, and you determine who wins. It will take away from all the gloom and doom of a post-apocalyptic wasteland. If anything like this does happen, Lakers up!!!

From another game?? :/ hmm that's a tricky one... I suppose I would like to see the Combine or Universal Union from Half Life 2 in the Fallout Universe.. I mean man oh man those guys are so advanced they make the Enclave and the Aliens from Mothership Zata look like cave men... though I must say they might be to powerful and thus just rule the entire planet like they did in the Half Life Universe.. however the Fallout Universe has a LOT!! of creatures and factions in it and that's just in the USA god knows what could be happening in other countries..

So yeah I say the combine from Half Life that would be a cool thing to explore... or maybe and this isn't really a faction as such but the Governor from the Walking Dead.. like he had his own town like in the show somewhere in the wastes where he kept his people safe and fed.. and recruited the Lone Wanderer/Chosen One/Courier/Vault Dweller to perhaps raid other towns and groups for their supplies in order to supply the Governors town.. boy that would be pretty amazing stuff...