Get the pbsetup from Even Balance's site and update your PB manually.
The mechs are great but they require a lot of skill to use. They make you think you're invincible but it only takes 1 well placed shot to bring one down. You gotta know how to take cover, be aware of your surroundings and be ready to put your shields up at all times.
Clan wars is intermediate to pro players. Joining there as a noob is instant frustration and hate.
Just start hopping on some pubs and we'll join you and tear it up.