helis-d/ProjectZ — reverse-engineered prompt

I want you to turn this into a playable online prototype of Project Z, a cyberpunk style 5v5 tactical hero shooter with very lethal gunfights and round based tension. Use the existing project and wire up the core match loop so players can join a match, pick teams, buy gear in a short buy phase, fight in a combat phase, plant or defuse the Sphere on map sites, win rounds, swap sides at halftime, and finish a full match with a working scoreboard.

Keep the gunplay feeling sharp and punishing, with fast kills and headshots mattering a lot. Add a small hero layer where abilities support gun skill instead of replacing it, and make ult style powers feel earned through performance in the match. I also want basic economy rules, credits for wins and kills, simple armor and weapon buying, and a ranked style progression screen that shows visible rank from rating.

Please make the online flow actually work end to end, including accounts, matchmaking or room joining, and backend saved player stats if the repo already supports that. Look up current docs online if you need to.