i dont know if anyone else has thought of this, but wouldnt it be intresting to try using xash3d, or half-life 1 sdk, to replicate the 1999 beta based on info we have? like implement some known features from 1999 that werent in goldsrc and try to make some maps, like hyper001 based on those 2 screenshots we have from tf2 brother hood of arms,etc