My take on the "best" combat-wombat to start.
Take 10 obligation for extra exp.
Be a klatooinian.
Buy Brawn 4 and Agility 4
Pick Mercenary Soldier (If AoR is available pick gunner or sharpshooter)
Use your racial skill to start with ranged heavy 2. Also take melee 1 (pick up anything as a weapon), and ranged light 1 (grenades), use your any skill on either stealth or piloting space
Start with a catch jacket, two clubs, and a stun grenade or heavy clothing and heavy blaster pistol (stun only) or the SKZ sporting blaster (stun only). Use these to acquire better gear. Mono edged melee weapons and Auto fire blasters been the aim.
Progression get as much "point blank shot" as possible then head to dedication and true aim