Is that a glitch i sees? Bah if you want give me vmf and i do shiz. I was thinking of this even though im not the script writer i thought it was ok:
Alyx and Mr scientist Gordon in heli. Alyx bitching about her father - running low on fuel and land on old abadoned oil rig off coast of Greenland - find oil but big amboosh by evil combine - fight way back outside - standoff with heli - escape and stuph. And since its cool its a stormy rainy weather.
For this i wanted the combines to have the appropiate looking gear --> hoods, masks, respitory system like diving tanks.
For the fuel i was thinking it could be like the l4d2 Hard Rain level where you had to drop it to shoot. Then up top by the heli you put it into a machine that starts pumping it into the heli via a pipe while your fighting, i dont know wether to make it so that the combine try to destroy it or not.