my friend told me something yesterday how you can get some one with T2 or T1 gear into T3. I tried it, and sure enough it worked. You throw a vial while they run at the barrier, and they fall through with the vial.Just something that you guys don't want happening.
Korakc
there is an easier way. Just invite the T1/2 players to your T3 party and then you don't have to waste a vial. Seems sorta pointless to fix the bug.