Hackers on PS4?

As other's have pointed out, lootboxes can be pushed and moves around for a couple of seconds just after a player is killed before they get stuck in place, sometimes they kind of land on your head when the box spawns in point blank range encounters, and you can briefly carry it around.

As for "what looks like god mode" you'd have be more specific about what you mean, and as for one shotting, Kraber can one shot any player, full health and purple of gold shield and purple or gold helmet.

And Peacekeeper can dish out a 165 or so damage pump to the face.

At the start of the game a burst from either hemlock or prowler will also kill you in what seems like a one shot with lvl1 armor equipped. There are valid explanations that are possible in the game at least.