ED terrain team is their own thing, and do not create maps for any other game. BoBp is made by the regular IL-2 map team, as will BoN.
UGRA is a third party, NOT a part of either game's map team. They've made the Normandy map for DCS and the Arras map for IL-2's FC, which was released about a month ago, not 2015. BoN is not made by UGRA.
Again, BoN is not made by UGRA.
There's literally nowhere this confusion should be coming from and it's ridiculous. Believe facts not rumors. If it's a rumor, mention it as such. This is how misinformation is tossed around.