They say using scripts ect are bannable. But I have been using synapse since bo2 and no ban. I use recorded macros so my triggerfinger is real, just on replay.
This way I don't get muscle cramps.
The good thing about this is that if you run some 3rd party script program, it might be caught by anti-cheats searching through the running processes. But synapse is basically whitelisted so 100% no ban for it being in the background.
They might ban you for some extreme jitter stuff on the brecci if they watch back your theatre mode. So just don't get killed by reports and you are good.