Aliens should be granted certain situational awareness with SoF: you see small red arrows(stylished for Kharaa) in the edges of you vision. These arrows point to the direction you have to turn in order to face the closest enemy, much like in original HL you had when you were taking damage.

I guess it couldn't do any harm? Maybe help people who have difficulties adjusting playing a fast moving Skulk trying to bite quick marines?

Sounds like a good idea to me. It would only work if you have SoF so it wouldn't be too overpowered. (Skulks are supposed to have a little trouble seeing when attacking).