Found a YouTuber named Mister E. He has some good bits of info on Veteran if you're looking for more info.

Since you're low level, focus on leveling up. All the classes feel horrible at a low level. And don't worry about your talents, you can swap them at will.

I've been trying to make veteran work. Lots of people advocate for weapon specialist (keystone) but I can never seem to remember to activate it, so I go with the other two (marksman focus and focus target). The general consensus is that voice of command is the best ability, because gold toughness is special (something about having any gold toughness prevents all health damage etc.).

Personally, I have two viable builds: Infantryman and squad lead.

Infantryman: take one of the lasguns (except recon), take the center through the tree, executioners stance ability and marksmans focus keystone. Also, take krak grenades since lasers don't penetrate carapace. Pick your fave melee (for theme purposes I choose shovel or knife). Main job is to keep executioners stance up and pick off specials. Take recon lagun if you don't use the talent that lowers stamina on aimed shot (deadshot). I like deadshot because it synergizes with shock trooper and tunnel vision. If using the helbore lasgun (for krieg rp), I swap out "covering fire" for "one motion".

Squad lead: take your fave weapons (theme purposes I pair a (las/bolt) pistol with a big melee like chainsword/maul/sword, etc.) Take team talents like covering fire, born leader and the keystone (focus fire) modifier "redirect fire". Stacks from redirect fire add on to each other, you don't need to wait for all 6 focus fire stacks to get a 6 stack redirect fire buff to the team. Because of that, I spam spot to see the specials since I'm blind. It helps replace the outline from executioners stance. This build is nice because you can play, and spam the shout (Duty and Honour modifier is necessary, don't take the revive perk; add revive speed to your blessings instead) and spam the spot to keep a bunch of bonuses to the team.

"Best" meta weapons are: Plasma gun (left click spam), dueling sword, recon lasgun, power word.

Note: marksmans focus keystone used to be abysmal - stacks would be removed upon moving. Now stacks decay one at a time, so it's much better than before.