My best run so far on Sarkathlon 4. MUCH room for improvement, as you'll see...

This may or may not be the best path to the finish (I'm assuming not, since I'm not really good at this and it didn't take long to find this path), but it's the fastest one I've found myself. I'm mostly just posting this to help anyone that's having trouble finding the grenades or is looking for a path to the finish.

The one part on this map that pisses me off is the barrel jumping. I don't know what Mr. Sark did when he made this map or if I'm the only one having this problem, but one of the last barrels to jump on randomly sinks into the water and doesn't respawn for a really long time. It's ruined many of my best runs.

Anyway, enjoy. I haven't so far. :P (less info)