That is not a valid advice especially for defenders.At least practice with the bloody weapon before you go into a fortress battle with one especially if defending.

Sure it is, as long as retards aren't hanging out by the entrances to B. All melee should be hanging back to protect heavy weapon spammers from JPA's/GA's that force their way in.

Stay the hell away from the main entrances if you're melee, you're just going to get shot by two sides then.

I died 3 times by the same PC user because he didnt know bracing is a thing with PC.

Well that's his fault, not the weapons fault. Keeping full aoe spam on the entrance to B is still a good thing to do, as long as everyone knows how to use the damn gun.

My personnal tactic is to praise the Emperor that my GTX 660M will be able to handle the map when I load it

That is your problem you should pray to the Omnisiah and apply sacred oils for your personal cogitator to fuction!

The Mechanicus already provided me a better Cogitator at my Personnal Planetary Fortress.
It's just that Portable Cogitator which is Old (Asus Rog G75V) and outdated but it can still run all the other maps at 60 fps in Ultralow