OB XBox: Zombie Chopper Achievement

[p0lar_bear]

Anyone know what exactly would disqualify someone for getting Zombie Chopper in HL2 (complete "We Don't Go To Ravenholm" using only the gravity gun)?

I've used the grav gun's primary fire to punt a few headcrabs, and only switched weapons once so far when Grigori threw me the shotgun. I'm afraid that either of those would kill it.

[itszutak]

I think it's just shooting someone with another gun. Punting is okay and so is switching weapons.

[p0lar_bear]

Yeah, I finished the chapter and got it, thanks.