Its friday where is it? And are the HCS codes that are given away for 1 person only?
Halo 5 doesn’t roll over the date until fairly late in the day. I’m not sure of the exact time, but it seems to be about 2pm cst, or 12pm pst. Therefore, it’s not Friday yet.
If it’s the same as previous HCS codes, they last for 10-15 minutes, and anyone who uses them in that time gets the reward. Each person can use each code once.