DLC sized mods for Fallout games are weird. Although not as ambitious and thankfully, controversial, as something like Fallout the Frontier, The Long 15 By Toxic Whiteout and the rest of the L15 Team is a solid mod, boasting a bigger world space than Old World Blues. You should definitely check out this mod
Long 15 - NCR Expansion by Long 15 Team
https://www.nexusmods.com/newvegas/mo...
Other mods mentioned
Real Time Menus - NVSE by WallSoGB
https://www.nexusmods.com/newvegas/mo...
Realtime PipBoy Map - ESPless by Stentorious
https://www.nexusmods.com/newvegas/mo...
Animated Location Discovery by Flip777
https://www.nexusmods.com/newvegas/mo...
The Long Road Ahead - Armor Pack by QwibQwibMods
https://www.nexusmods.com/newvegas/mo...