Special ammo belt for Yak fighters. Its possible?

[-250H-Ursus_]

Now that we have Yak-3, i had again this question.

Why Yaks does not have the special ammo belt like La fighters?

Even in a stage like 1944, Yak-3 has the Shvak without an option to have special ammo belt like La have.

Same can apply to all Yaks not just Yak-3. Cannon is the same, is a ShVAK. And i think La-7 would have the same option as La-5, La-5F and La-5FN to add special ammo belts with the B20s.

Would be nice to have that option in Yaks. I don't say it on MiGs, I-16s or really early planes like the new Yak-1s23 (even s69) or LaGG-3, since they are super early and maybe there is some historical context i don't catch. As an example, MiG-3 and I-16 cannons are tracerless.

But, It is possible to add the special ammo belt modification to the Yaks? Like, for Yak-1b, Yak-9, Yak-7, and Yak-3?