Destiny (PS4) Unkillable Cheaters/Hackers in Trials Of Osiris (Lag switching?)

So after having fun and playing trails the whole day this is what we run into. Luckily we did manange to get 9-0 on our card later on thanks to the buff that saved us. Some of you might call this lag but I really don’t think so, They are pushing the exploting blocks to the middle B flag with no fear(seemed to do it for a reason too). We could not even hit these guys once. My friend used his striker super in the middle B flag on Overtime, He did not hurt them but he got killed. Apparently one guy has a 56.0