Don't expect too much of it. You need to extract the folder in your sourcemods folder and then restart steam.
There is NO main menu. I stripped everything related to alien swarm and replaced it by the hl2wars code. So basically it's hl2wars on the new engine. This build does not provide any hl2 content, so you will get error models if you try to spawn something.
How to use:
Add "-console" to your launch parameters.
To start something open the console and use the map command ( map asi_* )
Use "load_gamepackage asw" to load the alien swarm package. It adds "unit_marine" to the unitpanel list.
