Points system in place. 10 waves done. You can buy assault rifle, SMG, and shotgun. This is a WIP.
Now for the goodiez: Update - Xfire Video
Um... what?
Buying interface
holyshitholyshitholyshithaxhaxhaxhaxhaxomgomgomgomgomgimsayingthesameshitoverandoveragainimadouchebagimadouchebagimadouchebag
Now all you need is fixable barriers making obnoxiously loud "ding ding ding" noises when you fix 'em, evil laughter at the beginning, and out-of-place rock music when you die and all their heads explode.
Oh also, I believe it was CAD, but someone made a random weapon box too... it was awesome. Could you reciprocate that? :)
I might do a flood version. As of now, Covenant works best. Nazi Covenant anyone? Work has been halted for one day, as tomorrow is the last day of finals. Then, expect an update. Public release at 50 waves. Private beta at 25 waves. Anyone want beta?
Beta me?
Currently, I'm working on tagging weapons.
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Our lovely new assault rifle.
Credits - Bungie (model), Elefante (animations), Tazz (skin)
Pistol - 
Credit - Bungie (model), Leet (animations), Tazz (skin)
Great shop idea! (kudos for teh originality). Any progress?
The weapon buying interface will take some time to complete, as L283203 took my words "take your time" literally. So they most likely won't be done til July. As for the map itself, I've added a random weapon spawn. At the end of each boss wave, you will earn a free weapon. At the end of the first boss wave, you can earn either an assault rifle, SMG, or shotgun. There will be 50 waves, and every tenth wave will be a boss wave.
In this case, I earned a SMG.
In other news, I've gotten the creepy startup sound ingame, and I'm devoting my time to creating achievements. When you earn an achievement, it will play the famous "bleep-bloop" sound, and display your achievement.
Two that I've done / planned out so far: - Beat the game without buying any weapons (using only the default pistol, and free weapons). - Save up 50,000 points.