Weapon's description:
The RSM-67 (Nickname: Mace II) is a next-gen sub-launched ICBM developed directly from the RSM-56 Bulava. Commissioned in 2026, it is handed over to use by the Russian Special Naval fleet consist of the Shtorm aircraft carrier, a battle carrier, 5 super frigate and 5 stealth submarines. The missile's operational range is from 5km to 2000km with a top speed of Mach 6. The missile has two variants, the traditional nuclear warhead and the MIRV nuclear warhead, the second one is much deadlier as it carries multiple mini nukes. The missile is designed specifically for submarines and can launch from underwater. During the Broken Border incident, a few of them make an appearance during the battle with the largest Japanese fleet, they sinks and severely damages most of the fleet, lefting only a few ships to return. The missile doesn't appear anytime again till the end of the incident.

The missile can launched from underwater, however, it only work to the depth of 25m, go any deeper and the missile will go the Backrooms for no reason (idk why, even though I turned waterproof on for it).

Free to use, feel free to put it on your builds.
Subassembly instruction:
Hide the missile’s second stage (the nose) , it will reveal the main detacher inside, open the detacher’s connections, disconnect the detacher from the fuselage part right below the missile.

*When connecting it to your vehicle, make sure no part other than the main detacher is connected, otherwise it will stuck on your vehicle.

*The detacher inside the missile's first stage have this funky input: ammo("RSM-67") = 0. That input makes the first stage detach 10 seconds after released, based on the number of ammo you have. You can put as many as you want, if there're more than one, every missile except the last one launch must have this input: "ammo("RSM-67") < x (replace the x with a number), when testing, mark the launching order and change the number for the missiles to work properly, example: second to last: ammo("RSM-67") < 2, third to last: ammo("RSM-67") < 3, etc.

*If you don’t have much experience with SimplePlanes, I don’t recommend modifying the missile by yourself.

The mace is the most dangerous weapon they say.

They weren’t wrong, now there’s a sequel.