Oh! I also have a follout map I'd like to share.
A map based on my decision in F:NV and F:3. (And what I would do after that.)
A lot of license was taken, specifically with the background of my Courier.
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THE COURIER
Born seventeen years before the great war, in a town in the East of Scotland, he managed to, quite literally force his way into a position in the international vault inititiative. This was a vault, which unlike the ones made by vault-tec involved stasis.
Over two hundred years later, a malfunction with the life support rendered him the only survivor out of a small group of two hundred in the international vault. He stumbled out in the barren wastes of Canada, somewhere North-East of Vancouver.
He entered the Mojave Wasteland at the age of 21, working as a lowly courier for the Mojave Express. After the fiasco with Benny, he was thrust into the light, before the mysterious and powerful Mister House. When asked by Mister House what he would like as his ultimate reward, he answered; "Safe passage home - to Britain." When House declined, the Courier set off into the Mojave once more.
The Courier's journeys in the following two years where like no other human beings could have claimed. He visited Zion canyon, where, it could be argued, he done more bad than good. He destroyed the most savage tribe with the help of the legendary "Burned Man," and set others down the path to a bickering, war like society.
It is also roumored the Courier visited the Sierra Madre, which proved to be event which set his plans in motion.
There are also some whispers that the Courier spent some time in the Big Empty, but such talk is dissaproved of.
Eventually, his travels brought him to cross paths with Benny. Before killing him, he learned of a way to secure power in New Vegas.
From there, the Courier stepped back into the Lucky 38, and murdered Mister House when he least expected it. After installing another Securitron into his network, the Courier defeated both the NCR, and Ceaser's legion at the battle of Hoover Dam. After he had ensured his power in the Mojave, he began looking outward.
In the years that followed, the Courier persued destruction of both Ceaser's Legion and the NCR, with ruthless zeal. Eventually, the NCR limped into a corner in the North West. The Legion was vassalised, and eventually the tribes that they had enslaved came together into their own nations, and were given a "dominion" together. Essentially, as an autonomous region in the Vegas Autocracy. Caeser was brought personally before the Courier, as he died of Cancer. The Courier let him live, without medical treatment, and Caeser died anagonising, though deserved death.
The Courier also gave the Zion tribes autonomous status after bringing law to the region. There, the Courier met once again with Follows-Chalk, and old accomplice and friend, for the first time in 35 years. It was also the first time Follows-Chalk had set in Zion for 35 years.
The years after were spent subdueing the rebellious former NCR-territories. The area eventually calmed down, and were given semi-autonomous status.
EUROPE
About twenty years before the events of Fallout:New Vegas, the European Federation came down from it's frozen fortress in the Alps, to find Europe largely the way it left it; blasted nothing. Around the time the Courier wrestled control of Vegas, the EF expanded it's borders to the North Sea. However, persisting attacks, and humiliating defeats at the hands of German, French, Polish, and Hungarian tribals (Whom the EF had forced out of Hungary) resulted in the collapse of the Northern Territories. In the end, the only way they could keep control was to settle for a highly feudal, complicated and innefficient tributary and vassal system.
As well as this, attempts to contact the possible functioning government situated somewhere on the British mainland, have resulted in violence. Whoever is on Britain, has built up a hugely advanced naval defence system to hide behind. This has become known to continentals as "the curtain." An impenatrable wall of naval steel and 50 inch guns.