I hope they bought you flowers, cos you just got f**ked :)
This is the hunter game mode of Crysis 3 - REALLY proud of this - I designed the ambient sound for half the levels, wrote the dialog, directed the actors - and the result is awesome! It's so tense! Honestly, if you haven't tried it, I really suggest you pick up Crysis 3 and give it a go!
We had a great proximity alarm feature a la Aliens that beeped as the cloaked 'hunters' get closer to you. We set up some cool dialog that tirggered as they approached and the defending solider got more and more tense as they were picked off - the result was really nice, in a terrifying edge of your seat kinda way!