Hi there,
i made a speedrun of the black dawn campaign.
I started the timing from the moment when the hud appears and stopped when it disappears.
Level 1 - Invasion 0:57
Level 2 - Sand in my boots 0:18
Level 3 - Not according to Plan 2:10
Level 4 - Baby Sitter 1:45
Level 5 - Twisted Metal 2:10
Level 6 - Flying Coffins 5:07
Level 7 - Time to Rock 'n Roll 2:06
Level 8 - Roasted and Toasted 1:50
Level 9 - Desperate Measures 1:43
Total: 18:06
Have fun.