First of all - this is great! Tactical 9MM/knife combo can get you alone through the first 4 waves. And the ability to smash specimen with LAW is also priceless - at very last this weapon has some usability now
The ability to swat specimen with shotgun butt is not as practical as the two previously mentioned, but still useful.
Now, I know that it's just an early beta, and I'm pretty sure you're aware of these, but I thought it still could help you to spot you some bugs:
-9MM/syringe has unlimited ammo, also, muzzle flash seems to be in the wrong place.
-Sometimes after shopping, all ammo for 9MM/knife is suddenly gone and you can't shoot it even if you find some ammo boxes on the map.
-Trader sells basic in-game flashlight shotgun.
-You can't buy syringe/9MM combo again after you sell it.
-Shotgun map pickup gives you a 5-block melee version of shotgun, held by the barrel.
-LAW melee doesn't always work, I had to drop the weapon and pick it up again to make it work. Also, when triggered, it stops the character in his tracks and emits a flashlight light for a second.
Keep up the good work!