doppelbock

When I play DOOM-3 in multiplayer mode, I get access to these maps:
- Delta Labs
- Edge
- Frag Chamber
- Tomika Reactor
- Lights Out

If I use the DOOM 3: Resurrection of Evil, will I get additional maps?

Also, how come sometimes I can enter multiplayer games that use the maps
Prantic and Never Outgunned? And sometimes I can't!

Any help appreciated, I'm a complete n00b in multiplayer mode.

thanks
DB

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