I think most posters in this thread do not know anything about open play pvp.
its a lot harder and much much more complicated than CQC. If CQC is like space cod, then open PVP is quake arena.
when 2.0 first came out, AA pioneered the silent running rail gun strategy, which works amazingly well in large 8v8 or bigger battles.
the first reaction to this meta change was, "silent running OP. Railguns OP."
then pvpers started experimenting with shields and multi-cannons. And what everyone realized was that shields and multi-cannons are still really really good.
in a 4v4, silent running is a liability. It's stronger to have a shield build in that scenario. Silent running is really only helping you in large fights (8v8 and up).
if 4 silent running FDLs went against 4 shielded gimballed multi FDLs of equivalent skill there is no doubt in my mind the shields multi-cannons will win.
Gimballed multis counter silent running.
Shield builds are stronger in 6v6 and smaller.