Sorry to hear you have Insomnia, I had the same problem few days ago where I stayed up for 72 hrs straight and played Black Opz. Eventually I did Sleep but like I said after 72hrs

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Head Quarters for max CP or XP
SnD for Medium CP or XP
Domination for Medium Cp or XP
Team Death Match for Minimum CP or XP
(CP - COD POINTS
XP - EXPERIENCE POINTS)
I HOPE I HELPED