I think Shang Ji link teams are not a thing for N3. I (hope and) wait for a rework of the profiles. At the moment I use Zhanshi teams without heavy weapons, including Tian Guo (proxy) and either Lei Gong or Adil. For the firepower I take Daofei, Hundun, Tiger or Rui Shi.
Again I'm gonna say what are you expecting really? This is kinda the reality of trying to run expensive core HI links. If I'm running Shang Ji/Jujaks it's probably going to look something like this, pending Shang Ji changes of course. The White Banner Army ────────────────────────────────────────────────── GROUP 1 10 TIAN GǑU (1st Section) Boarding Shotgun, Grenades, Jammer / Pistol, CC Weapon. (0 | 25) TIAN GǑU (1st Section) Hacker (Killer Hacking Device) Combi Rifle, Nanopulser / Pistol, CC Weapon. (0 | 23) JUJAK Spitfire, Heavy Flamethrower / Pistol, CC Weapon. (1.5 | 39) SHÀNG JÍ HMG / Pistol, Shock CCW. (2 | 44) SHÀNG JÍ Combi Rifle + Light Flamethrower + TinBot B (Deflector L2) / Pistol, Shock CCW. (0 | 40) ZHANSHI Combi Rifle / Pistol, Knife. (0 | 11) ZHANSHI Lieutenant Combi Rifle / Pistol, Knife. (0 | 11) ZHANSHI Combi Rifle / Pistol, Knife. (0 | 11) ZHANSHI (Forward Observer) Combi Rifle / Pistol, Knife. (0 | 12) HÙSÒNG Yaókòng HMG / Electric Pulse. (1 | 25) GROUP 2 2 5 5 HÙNDÙN (X Visor) Heavy Rocket Launcher / Pistol, CC Weapon. (1.5 | 26) SHAOLIN Chain Rifle, Smoke Grenades / Pistol, Shock CCW. (0 | 5) SHAOLIN Chain Rifle, Smoke Grenades / Pistol, Shock CCW. (0 | 5) SHAOLIN Chain Rifle, Smoke Grenades / Pistol, Shock CCW. (0 | 5) SHAOLIN Chain Rifle, Smoke Grenades / Pistol, Shock CCW. (0 | 5) SHAOLIN Chain Rifle, Smoke Grenades / Pistol, Shock CCW. (0 | 5) CHAĪYÌ Yaókòng Flash Pulse, Sniffer / Electric Pulse. (0 | 8) 6 SWC | 300 Points Open in Infinity Army You have monks for point defense and smoke support, and a flexible group of HI you can turn into different Duos. The HMG could push up the field, or it could sit at the back and join the Zhanshi core and just be used to brute force an opening to move the Duo's through, let them be the front line, and then sweep up whatever attacks them.
Why shang Ji HMG instead of Qiang Gao? He costs a point less, .5 SWC less, and has Fatality and Veteran.
It's a place holder, we don't know exactly how the Shang Ji profiles (or Qiang) are changing. The HMG Shang Ji will probably pick up a chain colt and regeneration and AP for his HMG if the code 1 profile is anything to go off.