You'll have to wait and see.
Hi guys, we got some news to share on this!
An answer that we published about the Swedish A variant and British C variant can be seen here: https://wt.link/DevServer
In short:
Both A and C variants will have equivalent weapons.
Both A and C variants will have a helmet-mounted display (HMD).
We came to the conclusion that both A and C variants have almost identical performance characteristics.
A full explanation can be seen through the link above. Thank you!