[PR] Using emergency security alert now triggers maptext + a sound effect

[Ikea]

The "please assist this officer" bit is mostly there because 1. it gives an in character explanation for why it was designed with a noise and alert, and 2. The alert is used mostly when a sec off is getting there shit kicked in so I find the irony of the alert having good intentions in character of getting others to help actually just further encouraging the antag to beat there shit in faster to be funny. I am in no ways opposed to removing it, Id just like a bit more in the way of feedback in this regard first (this means feel free to comment yeah I think that bit is bad or whatever with no other feedback attached).