>>286396127
>>286403282
I made a mod for steel heroes awhile back. It only changes the texture of the two main tanks. Pic related.
https://mega.nz/file/RLgzVBhD#8C_YwapHkrNtrxzgS0Bh9G5Cdu3225QB_UiN3Qr89CA
First rename resources.assets in steelheroes /Steel Heroes_Data/ to resourcesOLD.assets if you want to keep the unmodded game
Download it and inside the steelhoroesmod folder there is a resources.assets, export that to /Steel Heroes_Data/ and the mod is installed. 
Sorry if this a bit late.