DevEnableTech now displays from all factions
remove map Brimstone
remove Year 501

closes #6447
don't play Battle Control Initialized during FMVs
Merge pull request #6689 from huwpascoe/alltech

DevEnableTech now displays from all factions
Merge pull request #6843 from Mailaender/unpolished-map-cull

Removed maps with visual problems
Merge pull request #6848 from Mailaender/fmv-sound-polish

Fixed sound overlapping with full motion video clips
Second implementation of Sandworms