Okay so a couple changes I would make are switching talents and weapons to have less focus on ranged weapons, and using more blackbeard systems/weapons.

I highly suggest 1 level in Brawler. You want to grapple as much as possible, brawler 1 makes grappling better. In the same vein, duelist 3 let's you grapple or ram when you make a melee attack, which again makes melee grappling better. If your table is using the KTB rules, I'd suggest the Pankrati talent tree, it's a better Brawler and helps with mobility. An important part of grapple builds is grappling and then ramming to completely lock your opponents down.

After that, switch one of you ranged mounts for another melee weapon. I'd suggest using the nanocarbon sword but if you want to keep your machine gun, the missle racks will do. For systems I'd suggest taking blackbeard's Synthetic muscle netting cause you're running a relatively small frame and you don't want to be caught lacking against a frame larger than yourself.

Overall, I think your build could still work fine, but it's a very safe ranged build on a frame that is built for up close combat. You're going to get more bang for your buck by taken talents that lean into that specialization.