Why 343 changed matchmaking to please upper-rank players is beyond me. Cater to top 2% and let rest of community suffer.
Point in case, my last arena game that matched:
My team: Silver 3, Unraked 7 (level 4 in Halo 5), Unranked 3 (level 3 in Halo 5), Unranked 2 (level 2 in Halo 5)
vs
Their team: Diamond 1, Gold 2, Gold 1, Bronze 4
Needless to say we got pwnd and my controller smashed against wall. You OWE me 343.