Why I Love: the Zombie Chopper achievement in Half-Life 2

We don't go to Ravenholm - and if we ever accidentally end up there, we never go without packing heat. A human hideout on the outskirts of City 17, Ravenholm came to an appalling end when Earth's slug-alien dictators carpet-bombed the place with hungry headcrabs, turning the population into a pack of savage half-cadavers. Aside from being deeply creepy and gross , it's also where you first encounter