Halo 3 Countdown

Ok.
I want a program that uses countdowns when I press a hotkey(s)

so when I press the hotkey(s) that I set it will countdown the time until a weapon respawns

could anyone make that?

Custom Hotkeys and Times?

Thanks for the help

this is tutorial request not app request mate -.-

and he wants this 4 halo 3

I need it for my laptop for MLG
so that I know when my team mates can get custom or when weapons spawn