Playable, yes. But there were several issues that were caused due to various changes and fixes in the newer engine, and it could not be released in that state. If you want to see what I'm talking about, install stock Beta, and apply the latest scripts update from the TT website. Thats exactly where I began. Purchase terminals were broken, helicopter cinematic scripts, shaders, screenshots, mechanic and medic healing balance, fog on some maps, function keys, ID collisions on some maps, menu element colors, and a laundry list of other small things I dont remember. Several issues were the product of hacky stuff that was done in the engine back then, and had to be undone in order to work now in the "standard" way. No more special game-specific hacky stuff - we're using the same TT 4.6 engine that Renegade uses now. Just had to make the game's configuration understand that 😉