Posted 27 July 2006 - 05:32 PM
Where to start,
Okay, remember each one you blasted in HL? Remember seeing those green bindings around their arms and necks? Now, compare that to the friendly ones you see in HL2, where did the binds go?
Secondly, when you first get off the train in HL2 you'll see the screen with Breen on it. Now, go to the area under the screen and look to your right, you'll see a vortigaunt sweeping the floor but look closely, it'll have bands on certain areas.
Killing the boss in HL freed them from the ones controlling them. However, it was too late, the combine had come to earth and thus, years later, we get HL2.