Campaigne XP back to normal?

Campaigne: ...................Oddly enough Campaigne XP has reverted back to it's previous yield. This aparently happened suspicuosly right after the Version Update/Patch. If you read my Blog Post from last week it explains how every 1-Wave Campaigne was always netting me and my friends exactly 1500 XP. It now seems to be back to the normal with 2k+/3k+ per 1-Wave Campaigne and I haven't even seen a 1500 XP Run since.