List help

Hi everyone, completely new here, I’ve built my Krieg Kill Team and feel I’ve made mistakes, I’ve built a sniper, medic (with separate medic kit - not sure if this makes a difference), watchmaster (plasma and chainsword) and a death korps veteran.

Is this viable? Others seem to have used all specialist minis and have no Troopers. All listed above is what I have and remaining are troopers.

Any help is greatly appreciated