Bukkit

What is the issue?
how exactly do vtevent for chat work, i'm attempting to bypass sudo not recognizing vtcommands as actual commands (if you have a fix for that i'd prefer it) so i decided to sudo them to say i'm infected and to then to pick up that they said that and to run the custom command that give them the scoreboard value

full situation
trying to create a plague with scoreboard and command blocks without /execute working in 1.7 we need to change scoreboard values for all players in a range of a player with a scoreboard value periodically we have installed chain commands but it doesn't support scoreboard and so we installed variable triggers and made a custom command that chains all players in range to run a custom command that changes there scoreboard value but sudo doesn't support the custom commands so i decided instead we'll create a block that targets players with infection to chain sudo /me i'm infected and then tests for players who say there infected and make there scoreboard infected

thanks for any input and help

You can use @BROADCAST and make the message anything you wish - since you'll have the data of who is infected you can make it look as if they have talked even though it's just a broadcast, that way you don't have to use sudo or /me.