When I play as Head of Security/Warden/Security Officer I notice that we can be taken down and out just as fast as an obese mime. Then I think of how real life officers and such are able to take bullets and still take down the perp, or take a knife in the stomach and pull off a take-down. Not too long ago, I was playing as the Head of Security and I was knocked down by a single bow from a mini-crossbow from a traitor. I think it's ridiculous that I'm playing as the station's main safety team, yet I can be so easily taken down.
Now, my suggestion is that the security team, and especially the Head of Security, is made tougher and can take more hits before being killed/knocked down/knocked out. I know that Security is supposed to be a force to be reckoned with, what with their armor and weapons, but I think that they should have the health and toughness to back it up.