Based on my mediocre crucible skills I think the "OP" guns are actually the Vex, Red Death, TLW, Thorn. I honestly don't think thorn is any more powered than those others. I use them all and the match ups between them usually come down to player skill. I agree this set is more "OP" (a.k.a. the only weapons I really do decently with outside of MIDA) but I wouldn't single one out above the rest.