Hey Guys, Once again sorry if im posting in the wrong place, im new to the forums. So basically I have learnt the basics of hammer and as part of my year 12 research project I am creating a map. I dont however know what the "rules" are surrounding using props, models and textures that I have downloaded of tf2map.net? basically I have noticed a huge amount of amazing content that is perfect for what im doing. Do I have to acknowledge anyone whose content I have used, or does a map have to use only my textures, props and models if I want to upload it? and finally if I ever wanted to submit a map to valve (a long way of yet, if ever) what are their requirements? Thanks heaps for any help.