I'm expecting this to be amazing, looked at Tough Guy and similar runs before but they seemed comparatively expensive when compared to this beast.Like you say there'll be a few tailbacks at the intial few obstacles until the course thhins out, think this may well be a race that calls for a lot of co-operation
There is a water section, remember reading about a reservoir or something similar. If you look on the website there is a rough description of each zone.
I'm just training as and when I can around jobs and children. The course does sound like they've got everything covered including 150m of monkey bars, don't think we have and that long so it'll just be going backwards and forwards at the park!!!
I'm going, I've done a few marathons before and a few assault courses, but not together. As I've said to a few other people I would imagine the pace won't be paricularly quick given the number of obstacles but I could be wrong.
I personally am just trying to get some miles on my legs and using the a - frame thing at the local pack to do all sort of arm exercises etc. think this is meant to test every part of your body not just your legs!