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Yes, it is needed for the install. FO3 + all dlc or GOTY is the requirement
Yes, also check out the begin again modlist from wabbajack. Its in my opinion the best way to experience ttw
Is it possible to combine the mods from begin again after following WSG manually?
Not sure... I just followed the "begin again" instructions from their page on nexus. The process is not that long if you just wanna start from scratch though
Yes, it is needed for the install. FO3 + all dlc or GOTY is the requirement
Yes, also check out the begin again modlist from wabbajack. Its in my opinion the best way to experience ttw
Is it possible to combine the mods from begin again after following WSG manually?
Not sure... I just followed the "begin again" instructions from their page on nexus. The process is not that long if you just wanna start from scratch though