As you probably know, there was a Rocket Crowbar 2 for Half-Life 1. Now we're making Rocket Crowbar Hl2 - RC2 or RCHL2? ...? Well we were confused too. Here's how we're going to work it:
Rocket Crowbar - The original Rocket Crowbar (through v1.9)
Rocket Crowbar 2 - The version 2 of Rocket Crowbar for Half-Life 1.
Rocket Crowbar: Source - Rocket Crowbar for Half-Life 2! This is NOT for Half-Life: Source.