Thats probly the best damn explanation ive heard so far.

Thank you! I give because I love.

But why would gruellas want with umbrella property anyway?and y not send i a USF team or UBCS instead of marines?and how the hell do u mistake a village for a rebel hideout?it could of been a rival corperation hiring the gruellas to steal umbrella property.then the so called "package"was transported from the village were billy's unit arrived to a undisclosed location.that would explain why some of the marines were killed by gruellas,because it was a diversion to transport the virus away from the the village and into the location in re5.there the rival corperation opened the "package" and all hell broke loose.thus the setting for re5.and thats my theory in a nutshell.

We don't know if the village was Umbrella property. A village in the middle of a vast, dense jungle isn't that different looking from another one. Like I said before, mistaken identification and false intelligence happened a lot in Vietnam. As for Billy's unit being killed on the way there, if you are a guerilla army force you don't want an American army unit after you. After all, you don't see many guerilla forces hiding out in the jungle welcoming people with open arms!

However, your theory could be correct, we'll just have to wait to play Resi 5.

Very good theory....the best so far

Recent news has indicated that the Proginator virus and the leeches play a huge role in the game so RE0 may have a large part too.

I was thinking the same thing about Billy. Maybe the rival corp. was trying to steal the Mother Virus from the a African Umbrella Lab, which could have started a Civil War there and the Marines were sent there to protect Umbrella Property.

If you noticed in some of the past trailers in re5, you could see a small village.possible connection to 0? idk. i also thought of sheva being a member of the village. hiding from the marines during the massacare.

I will respectfuly suggest that all the above is completely false & incorrect. There is no evidence in any of the cut-scenes, dialogue, or files of Resident Evil Zero, to corroborate any Umbrella involvement in this village massacre. Moreover, nothing evidenced in the supplementary material such as the Archives book, which details these events with depth. Additionaly you will see a detailed INTERELATIONSHIPS table with a clear potential to link the village killings to Umbrella involvemnt IF that were true - but is was not, as there is no connection here. Danere Marine base had it's own internal politics to more than cover any scenario involving a warcrime like this, and if a connection with Umbrella existed then it would have been evidenced in this interelationship table. Furthermore, the authorative canon source for RE0, that is its Kaitaishinsho guide mentions NO involvement here either. As for the RE5 issue of gameinformer, its significance is minimal at best, if not a complete irrelevence, as non-canon material, and it holds no more weight than fan fiction; I also have the capacity to have journalistic input into a computer magazine, but that doesnt make me Capcom staff, or by default a canon source. This is a spurious source, and can do no more than summise this connection, but it is false. The Billy Coen back-story holds no relevence or connection here, sorry.

I think it could have been other means. But I would not rule out Umbrella.

There's a possiblity that Umbrella had something to do the conflict there, because there was a mentioning of zombie dogs. Umbrella calls those zombie dogs Cerberus.