@guythasawesome need to change where it says zm_tranzit in the GSC to zm_transit. Alternatively, use the new version: https://forum.plutonium.pw/topic/34018/release-zm-select-your-character-options-for-solo-custom-game
@JezuzLizard While the built in compiler is great, compiled GSC should be allowed as an option. Many old mods from the past are compiled, and not all of them are open source or 1:1 when decompiled. This is good for preservation.