400m Walking Lunge + Muscle Ups/Run

WOD
400m walking lunge
7:27 but I think it was not quite 400m

Then

5 MUs
400m run
5 MUs
400m run
5 MUs
400m run
5 MUs

13:06 or something, wasn't really doing it for time
I failed several muscle ups in the first set, then I sorta got the hang of them again. I was able to string 3 in a row in set 3 (I failed my attempt at the 4th but I think I could have had it if I had committed).

Then

Skills
accumulate 1:30 in L-hold from hang (on rings) in as few sets as possible