Right, fair enough.
UF-SPAAS-44 "Sewing Machine"
The Sewing Machine is essentially another revision of the Velociraptor autocannon, based on the VVF version, this time lengthening the barrels significantly, making them water-cooled and quad-linking them together for higher fire rate of at least 3000 rounds per minute.
The weapon is mounted in a special powered (to make very fast turns possible) mount that's either available as a separate trailer, mounted on Artemis trucks or instead of a Salamander turret, with any armour on the gun being a secondary concern. It should also be mounted on ships (and other anti-aircraft places that need it) were applicable, most notably on destroyers where they would also be useful against enemy torpedo boats.
The mounting itself should contain a system that somewhat resembles the Long Shot guidance, except adapted for anti-air use, where the gun can be linked to an external radar , either static, carried by another truck or ship-based one, which will make acquiring, tracking and destroying enemy targets much easier, but the gun is also possible to aim by hand.
The ammuniton itself should also be revised to maximize penetration on AP and also include proximity fuzes on fragmentation rounds.
Very hard: 1
UF-SPAAS-44 "Sewing Machine": The Sewing Machine is a quad-mount turret for Velociraptor guns, mounted on an Artemis truck. A second truck carries a radar array which can control the gun (through hydraulic motors) based on a system similar to the Longshot. Like the Longshot, the control over the motors isn't terribly precise, and it's especially not precise enough to aim at aircraft. For this reason it's controlled manually by a gunner, the automatic-aim system moves the entire gunner seat and the gunner aims relative to where the radar is pointing the run, trying to estimate for lead and drop as well as general inaccuracy. Unfortunately this is quite hard to do. At least gunners get Horsekiller-style optical sights to help them out. [Complex] [4 Ore, 2 Oil]
Alright, the main complaint people had was I didn't make good consideration for wording "The mounting itself should contain a system that somewhat resembles the Long Shot guidance, except adapted for anti-air use, where the gun can be linked to an external radar" and also the choice of 30mm VVF style guns.
I'll change it so that A) it includes the larger guns, but costs 1 more Ore and B) the radar is optional, but still requires a specialized second radar truck. It cannot be used with just any radar. Considering the 1 roll, I'm afraid you're still going to have to miss out on the Salamander version. The new description follows:
UF-SPAAS-44 "Sewing Machine": [Expensive] if using radar, [Cheap] otherwise. The Sewing Machine is a quad-mount turret for 30mm Velociraptor guns, mounted on an Artemis truck. An optional second truck carries a radar array which can control the gun (through hydraulic motors) based on a system similar to the Longshot. Like the Longshot, the control over the motors isn't terribly precise, and it's especially not precise enough to aim at aircraft. For this reason it's controlled manually by a gunner, the automatic-aim system moves the entire gunner seat and the gunner aims relative to where the radar is pointing the run, trying to estimate for lead and drop as well as general inaccuracy. Unfortunately this is quite hard to do. At least gunners get Horsekiller-style optical sights to help them out. When the radar is not in use, the gun can simply be aimed manually. [Complex] if using radar. [5 Ore, 2 Oil]