Type 25 looks like it will be very close to the famas in regular BO. Faster fire rate that others, up and right recoil pattern. Some things might be slightly adjusted, but thats what it looks like at the moment.
It will be a popular gun for sure.
The burst pistol is a beast - honestly all secondaries are very strong (treyarch has even commented on it, and them being strong to justify putting a point in them), the kap 40 looked amazing too.
That said, the pistol itself wont be better than the burst rifles or some other guns. Its just a very strong backup.