[3e] Statting a CTA weapon

[GURPS Fox]

So, I've been working on a CnC Tiberium/Generals fusion setting that kicks off during the Kosovo-Serbia conflict... but not in the way some would think.

Basic gist of the situation was that Kane's Black Hand, when killing off war criminals- left some of their equipment behind (they tried to keep it, but due to a combination of bad luck and unexpected resistance, some of it was able to be taken by various intelligence agencies, primarily NATO, China, and Russia) which led to some of the canceled Cold War projects to be retained (like the original M6 Linebacker in the form of Bradley ADATS or the project that caused the creation of this thread, the COMVAT program) and the core of what would become GDI.

The COMVAT program was a Bradley upgrade program tackling a problem: the 25mm was projected to no longer cut it. Using TOWs for everything wasn't possible, so a new weapon was designed. This led to various autocannons, but one was chosen for further testing. The reason why is that the gun can be easily fitted onto a modified Bradley turret and you could store quite a bit of ammo despite the larger caliber.


https://www.secretprojects.co.uk/att...-29-jpg.654842

Yes, that's an actual round, and yes, it's that small (45x305mm CTA, 70mm diameter case or -if I did the math right- 0.414515633366 cf). From what little I can gather, the entire cartridge weighs 3.175kg, yet its length is roughly a magazine page and a half at best.

I've been looking for rules for such ammunition.