Essentially T1 and T2 androids cannot shoot. Tested with minimal required mods and all possible not-error-inducing mod load orders.
Errorlog: https://gist.github.com/346682a9a0d1244d975cfc466fb7d20a
Modlist:

- Id: brrainz.harmony
Name: Harmony
- Id: erdelf.humanoidalienraces
Name: Humanoid Alien Races
- Id: carnysenpai.enableoversizedweapons
Name: Enable Oversized Weapons
- Id: ludeon.rimworld
Name: Core
- Id: ludeon.rimworld.royalty
Name: Royalty
- Id: ludeon.rimworld.ideology
Name: Ideology
- Id: unlimitedhugs.hugslib
Name: HugsLib
- Id: ceteam.combatextended
Name: Combat Extended
- Id: ceteam.combatextendedguns
Name: Combat Extended Guns
- Id: ceteam.combatextendedmelee
Name: Combat Extended Melee
- Id: atlas.androidtiers
Name: Android tiers
- Id: arandomkiwi.androidtierstxserie
Name: Android tiers - TX Series
- Id: goob.shinyandroids
Name: Shiny Androids
- Id: fluffy.modmanager
Name: Mod Manager