Were they using hacks? If not ...seems like a smart strategy that worked.

You mad? You sound mad.

So to me it looks looks like an angled foregrip AND an offset flashlight maybe (on the left of the circle). The foregrip is only on the right.....something similar to this

I dunno what they were in Stalker 2 specifically, but people may preorder digital games for whatever bonus may come from doing so. OSTs, art books, skins, content, boosts..... whatever.