The Survivors mod is a zombie mod but is making excellent progress. It is based in the UK and they already have a map that is almost complete and many many weapons and props already included in this mod. Its probably gonna be the best zombie mod that will come out for HL2 and don't you want to be apart of it? When you first join a server (Once it releases) you will spawn with a random weapon which there are many to get so you will never know what your gonna get. It could range from a Machete to a L-85 assault rifle. They do have a web site that you can visit and some forums if you want to post an application, they are looking for about every position since they are wanting to expand the already good sized mod team. Please take a minute off your time and check out the renders for this mod which are at http://ts.hlgaming.com/home.php They already have a internal release going on so you know its not gonna roll over and die.
Since when did an internal alpha (if you want to call hl2+new map an alpha) ensure the existence of a mod?