Missions & Complexes

So here I am warping into an Angel Hub, I'm aware there are two separate variations of this site and I specialize in the variation that spawns 6 Sentries/Batteries in the first spawn. However, when I arrive on scene, there are only 4 Sentry/Batteries. "No biggie" I say, some one most likely started it and had to log. Shortly thereafter I became aware that the site was very much out of whack. the second spawn in this site consisted of what is normally a 3rd string spawn, the 3rd spawn was normally the final spawn and the final spawn was made up of the second string spawn. To make things even stranger, the final spawn Angel Marauder (a cruiser of no major difficulty) was able to shield tank 5 valkyries and speed tank my guns (the latter is no big surprise but the former was a shock to me). Then (mind = BLOWN!) the site paid 12 mil! The most I've ever seen an Angel Hub pay in a -0.3 system pay is 10 mil.

Does any one know what is going on? And for even more context, the same site has only been paying 7ish mil for the past week.