Inaccurate Stats?

Games Halo: The Master Chief Collection
1

When I am playing MCC and I go into my career and go to Multiplayer, it says:

Kills: 9,970
Deaths: 5,746

When I go here on Waypoint, go to my service record for MCC, I see:

Kills: 11,040
Deaths: 6,105

At first I thought it was because the service record on Waypoint might show both matchmaking & custom games, but I only have 1,079 kills in custom games so adding that to the MCC stats equals 11,049; still not the same as Waypoint’s (even though it’s extremely close). Deaths shows a bigger margin, adding both my matchmaking and custom game deaths from the stats on MCC shows 6,244.

So I’m wondering what’s up with the statistics? Is there something I’m missing/not seeing?

2

After seeing that I have 0 headshots on Prisoner for Halo CE multiplayer, I’ve just stopped taking stats very seriously. Each game is dated and they clearly didn’t have the stat accuracy we have today. I’m surprised you were even able to view your stats on MCC. Every time I go to the section it says “connection interrupted” and boots me out after about 15 seconds of browsing. I