You're kidding right? Please tell me your kidding. These are infact PJs just like the OP says.They dont look very SF's, especially the guy on the right. notice how pale his skin is, like he's worked in an office all his life. I personally think there a pair of weekend warriors dressing up!
OK SM, you seem to be dialed in on the circumstances of this pic. So... What kind of rigs are they wearing? The bearded guy's looks to be an MC4 in desert tan, but the clean shaven guy's rig is unknown to me.These are infact PJs just like the OP says.
Alot of the guys in that particular group were wearing different level PCU garmets can't tell if thats some of them or not just fyi.