CS2 might be close, but that didn't stop me from experimenting!
I thought I'd experiment with linking stuff after a 2C FC. So far I can do FC 2C, dash 5B OR FC 2C, 6A OR FC 2C, dash 2C, then follow those up with a combo. Both the following combos are meterless.
Combos I tried out so far are with dash 5b (I'll explain the dash soon enough):
FC 2C, dash 5B* > 6A> 2C >5D (1st hit) > GH > **(almost max delay) followup> 5c >hjc>j.C>j.D > jc> j.C > ***BE > dash6D > j.D > jc > jC > DID > upper > ax kick
Damage: 4850 Heat: 56
*dash 5B so that 2C can hit, and the 1st hit 5D can connect, otherwise it won't work.
** you can do the GH followup abit earlier, and still hit them with the 5C, but you'd have to j.C>j.D>jc> j.C> j.D> BE, for BE to bounce.
***for some reason BE doesn't always hit the required number of hits to get 4850 damage, it'll be a bit lower (I think 4819). Probably has something to do with the jump cancel orientations/angles, or maybe I've max delay hitted with 5c after GH followup, I dunno.
You can do a variation for more heat:
FC 2C, dash 5B >6A >2C >5D (1st hit)> GH > *almost max delay* followup> 5c > hjc >j.C >j.D > jc> j.C> BE > dash6D > j.D> jc > jC > BE > 5D (1st hit)> DID > upper >ax kick
Damage: 4794 Heat: 61
I haven't tried any FC 2C, 2C combos, because I've spent more than an hour getting the above combos down for match use, as well as combo data. Hell, I even got the Training mode trophy, and my hands hurt. Anyways, I guess FC 2c, 2c will yield even more damage than the above combos.
Ah well, see ya later guys.