Only 1 in 3720? That's considerably better odds than I thought as well. I had thought it was going to be something more like 1 in 999943, if they're going straight at the Peace Moon. It also sounds like nobody, GM included, had really thought through what relativistic ramming could actually do as a weapon, never mind something near lightspeed. Admittedly, there's only the one hyperdrive module, so even if this was mentioned in the movie prior to this point where the players think of the option, it's more of a last-ditch, Hail Mary kind of weapon. Who knows what other assets the First Order has that could be brought to bear even if the Peace Moon is gone. Giant superstructures like this just don't get built from nothing.

I think Sally's pretty much spelled out exactly how things are going to go here. The Resistance will go in guns blazing on the Millennium Falcon, destroy the shield generator for the rest of the fleet to attack, Rey will end up finding a ship of her own in the meantime and escape in it after the shield is offline, then Han will jump the ship into the Peace Moon to destroy it when the battle starts going sideways. Or something along those lines anyway; I'm very curious how Zeppo is going to finally kick the bucket, and I'm hoping it's something spectacular.