well I was checking my req packs and got a silver on waypoint. but when I purchased it I noticed that the Money purchase came before req point purchase. This is probably some small way to push people to spending real money. I took a screenshot (after getting the pack, got the sentinel beam) so here is a link to the screenshot. (hope I linked the right thing.)
EDIT: forgot to add this but this is not really a problem, just kinda a thing I noticed but everything 343 does must be watched, right.