Just ran an IRL game with rules I'm playtesting. Included an extremely complex fight which was a great test for the system. Also had 7 players, which is already a challenge. Anyway:
Setup: PC1 in water, above seaweed farm, tied to a boat. PC2 on boat ~5 yards away. PC3-PC7 about 10 yards on a pier/jetty.
Round 1: Deep-One like thing grabs PC1 and starts dragging her under (grapple) into the water (dangerous terrain, eventually) which is dark and seaweed clogged (blinded, basically). PC2 starts reeling in rope. PC3 jumps in and starts swimming to PC1. PC4-7 stand around indecisively.
Round 2: Deep-one keeps pulling under. PC1 struggles to escape grapple, fails. PC2 keeps pulling rope (now taut). PC3 keeps swimming. PC4 jumps in and swims fast, PC5 jumps in and swims slow.
Round x: Deep-one thing is grappling PC1 and PC3 underwater in the dark seaweed, while PC1 is drowning, PC3 is almost drowning, while PC1 is tied to a rope, which is tied off taut to the boat, which is being pulled on by PC4, while PC2 is physically pulling on PC1, while PC3 and PC5 are trying to stab Deep-One-Thing, which is in a grapple, underwater, in the dark with both PC1 and PC3, while PC7 tries to stop PC6 from jumping into the water for fear she has been mind controlled by Deep-One-Thing.
It was a good test, and it identified a number of rules I want to change. Manic, but a good test.