So, well, I've been thinking to run a sort of psuedo-thing with some friends over the weekend. Basically, I designed an entirely absurd, Jungle-Gym-From-Hell ordeal in a 10 by 10 meter room, and I'm going to let them slug it out with each other in there for a while. Just to get the hang of combat with mundanes before I start worrying about magic and cyber. I'm just curious about movement modifiers in some cases.

I know that swimming rates and running rates are both in there, but what would the movement rate for slogging through, say, one meter deep water? Something deep enough to present a problem but not deep enough to warrant actually swimming? I'm thinking half walking speed would be acceptable.

Secondly, would you lose any walking/running speed over uneven and/or loose gravel?

And going back to the thing about semi-deep water, how much damage reduction do you think it'd offer from falls? And would it offer damage reduction from firearms? Too much Mythbusters, I know.

This is a great idea. My wife and one guy from work look like they are going to play so I think this is a good way to get them started. I hope you don't mind if I rip the idea ...

also it was only the extremely high powered stuff that shattered on the surface, things like the assault rifles pistols and the SMG's thier round held together just slowed after that first meter, so 1 meter of water would be no hinderence to bullets unless they came from a hunting rifle or a sniper rifle.

As for damage reduction due to the water, i would say none. 3 feet of water even in a large area isnt enough to absorb the shock of a (meta) human body landing from more than 2 or three feet above.

I really like those reduction rules. The place in question has multiple ground types, so it'll come in handy. But, yeah. The whole Playground from Hell idea was just something I threw up one day while talking with a friend.

If you do make use of it, I suggest just making it either a one-off or distancing it from reality as far as possible. Like some kind of Foreign/ Pirate Broadcast from the Barrens Gameshow.

Sort of, I don't know. The Running Man meets Smash TV meets Roman Gladiator Games. One version involved sticking people's arms behind their back with plastic restraints and requiring them to get them melted/cut off before beating the crap out of each other.

Another version involved civilians, hellhounds, and placing bets on who'd survive the longest.

I didn't see this episode of Mythbusters. What kind of ammunition, specifically, were they firing out of these rifles? And at what angle to the surface of the water?

It's been a while, but the first shots were with a 9mm at 90 degrees, which took something like 9 meters.

After they broke the rig with a shotgun, they switched to a public pool. They went to firing at about a 35/45 degree angle. The interesting thing was that the higher caliber stuff, like the .50 cal? Obliterates as soon as it hits the surface of the water.

They also tested a civil-war-era rifle I think, too. And that one was safe from penetration at 3 meters. Or feet. Like I said, it's been a while.