I think these are completely fake as I'm sure it was said no final stand/last stand would return to multiplayer and to be honest most of them don't make sense for example the "stalker" perk, I don't see how the claymore delay is stalker like at all and in my opinion would make more sense on sitrep. However if these are legit, I know the majority of my classes would use blind eye, assassin and sitrep but tbh I think they are fake and is just someone looking to get some views on their site.