Okay I just watched the new replays here and I laughed many times, thanks for this. It has a similar vibe of kredens' Realistic scheme, but the gravity is even more insane. I think Realistic is more tactical than this one, more balanced too. There are too many strong weapons available and it's not hard to find a super weapon that can destroy easily the map. I think it has more potential if upgraded in the future.
Anyway, the idea is great and just having fun trying the weapons already worths playing this scheme. I had a lot of fun watching you two flying with the Jet Pack, Magic Bullet was really weird ahahaha, I liked the Napalm exploding on ground and the flames glow so hard in this scheme... It's beautiful and they dig a lot the terrain too.
I think the turn time is a bit too long, maybe to allow people deal with the rope without wasting ammo, but that causes half of the turn time become people trying to flagpole with the rope. The axe can kill worms without high gravity, if you set 256 power to it. So, the axe can be balanced if needed for example: setting power = 1, will make it cause 25% of damage, with the gravity it will be more, but won't kill so easily. Another thing to consider is to experiment this scheme as a plop war version, it could be interesting too.