OnBotTarget - Bot - playsound [EnemySpotted.wav]
I forgot to mention that there's a bit of arguments for the input events
Self - The brick
Bot - The bot
Target_Player - The target, if it's a player
Target_Bot - The target, if it's a bot
Target_Client - The target's client, if it has one
Client - The brick's client
Minigame - The brick's minigame
When I was testing this I did something like
[X] ["0"] ["onBotNewTarget"] ["Target_Client"] ["CenterPrint"] ["I SEE YOU %1<br><bitmap:add-ons/face_default/asciiTerror>"]