15 Days - 19 Hours - 45 Minutes
Jeez I need to go outside haha.
MM: 20 Days, 23 Hours, 3 minutes
Custom: 1 Hour, 20 minutes
Spartan Ops: 1 Day, 10 Hours, 41 minutes
Campaign: 1 Day, 29 minutes
TOTAL: 23 Days, 16 hours, 4 minutes
Talk about needing to go outside! Or at least play a different game already…smh!
35 Days, 21 Hours, and 57 Minutes of mostly Grifball 
I typically play on a daily basis to decompress after the kids go to bed.
10D 20H 48M
12 Days 11 Hours 16 minutes
44 days 14 hours 52 minutes and 36 seconds.
total across all games or just h4?
h4’s 10D 14H
Only around 56 days.
Considering I work full time, married with 2 children, I don’t know how I’ve done it.
War Games- 6 days, 13 hours
War Games- 1 hour, 12 minutes
Spartan Ops- 2 days, 7 hours
Campaign- 2 days 7 hours, 35 minutes
Total- 11 days, 4 hours, 47 minutes
I think around 15 hours.