Ok this may well be common sense to most emu players but here goes,
at the start of all battlegrounds/arenas there is litterally about 2-3 seconds to get out of the gate before it closes/comes down.This means if you get out you can set up in arena or start capping bases in AB.
Tips:
Whilst doing this for WSG you can mount up and accept the summons into the battleground and you will spawn on your mount enabling you to speedily get through the gate.
Also if you fail to do this you can relog by the gate and as soon as you enter the gates are also again, open for 2-3 seconds so you can rush through.
--Hope this helps--
P.S dont hold me responsible for any banned accounts!