There were some useful tips and insights in this tread. Thanks to all.
By now I have War Hero gear with 2 pieces Tionese for the bonus.
I have still to exchange the modules on the Tionese gear and augment all the gear.
As a fresh 50 you never have enough augment kits, augments and money for placing or even buying them but I'm working on that. The 22 aim augments I couldn't find on the auction house so I took one tier lower.
Against good geared people who really kinow what their doing I'm still gone in a second but at least I do some damage now and my survivability is up a little.
I havent found a good Assault Specialist build yet only half/half builds so if someone can point me to the best build to get to put out good damage while mobile that would be very nice.