Combat unit, that's the sad thing. 
No. Attn B people no need go outfield during ICTs, they only
help up CQ do stores or deliver rations.
Then what's the point if report MC at the end but already
attended outfield. Do you know how siong is outfield?
from my understanding is Att C regardless is bunk or home, will
automatically discharge from ICT, which means this ICT no count.
Then depend on division, normally do make up in another unit.. Once
a div Officer told me, the make up normally will be tougher then
what you suppose to do.. eg. my camp mate defer local ICT (9days)
ended up make up in Taiwan 18 days.
If only slight not feeling well, what we do is report sick, tell
MO just give me att B and go back tell OC about it. ours OC will
ask us to rest in bunk machaim att C but wont be discharge...