When loaded by itself, no problem. But when combined with True Nukes continued, received the following error message at startup:
Failed to load mods:Warheads_Continued/prototypes/weapontype-sanitise.lua:243:attempt to index field 'ammo_type' (a nil value)
stack traceback:
Warheads_Continued/prototypes/weapontype-sanitise.lua:243:in function 'action creator
...ontinued__/prototypes/warhead-weapontype-combination.lua:126: in function 'combine'
Warheads_Continued/prototypes/generate-all.lua:24: in main chunk
[C]: in function 'require'
Warheads_Continued/data-updates.lua:5: in main chunk
Mods to be disabled:
Warheads_Continued (0.0.21)

Tried loading without K2, K2 assets, or K2 menu simulations and works fine, so some sort of incompatibility is my guess but no idea

honestly, try to use the Claude AI chatbot, he managed to fix some of my mod loading errors (dont know if everything will work in-game too, but atleast it managed to load the mods). Just tell him that you play this game and you get this error when loading these mods. Tell him to go step-by-step to tell you what to do, its really easy