Full-screen spawn timer for Guardian, The Pit, Construct and Narrows
Weapons run off the game clock, powerups are tapped when taken — the two respawn differently in Halo 3
Spawn cycle corrected to the real 2:33 / 3:03 — drop-spawn weapons take ~3s to land and settle before the timer starts
15:00 countdown clock, ten-second spoken calls, vibration and screen wake lock
Missed a tap? A powerup left untapped for 30s assumes it was taken at spawn rather than stalling
Shared sync — one person taps, everyone's timers follow
Discord-style channels: click one to join, drag people between them, four independent clocks for two teams at a LAN
In-game PC overlay with a hotkey (or a controller paddle) for the powerup, on the same channels as the phones
Lockout, Sanctuary and Warlock
Start the clock from the game itself instead of by hand