Why is spy tagged in this?

Thank you very much....you were indeed a great help Pixenal!!! I will get to it as soon as posible.

Manually compiling a weapon without the aid of tools like the importer can be like diving into a box of tangled wires for those who are new to the source engine, as it is a very old engine and can be a large learning curve. HOWEVER DO NOT FEAR, deep in the tunnels of the Internet lies a trove of knowledge called the steam community, with its intricate forums and overseeing guides you soon be fluently swimming in the vast seas of quake c, and building your own MDL files in no time! Some good guides I would recommend are Hell jumpers older tutorials (the ones before the importer came out, ahh the days), it uses a hat but is basically the same process for weapons, and for further information the forums are great, and taking a peek at the existing model files and all their components is helpful, BUT DONT TOUCH THE SCRIPTS, THE EXE AND DLL FILES ARE BIG NO NOs, you will be fine as long as you don't touch those files. Hope this was helpful ;)

Thanks for the comments everyone! I did indeed compiled it trough the cosmetic importer, Pixenal...... that´s the only way I know how to do it. I´ve tried to upload higher quality items, but the amount alowed on steam for tf2 is 1400 polygons max, if you know another way to do it, it would be a great help.
Feel free to comment on how to improve the weapon, (another texture perhaps?)
Thanks again!

It means that the weapon had a low poly count, letting the creater compile it through the cosmetic importer, thus it being tagged as certified compatible.

Its Very Rare To Get A Weapon "Certified Compatible" by valve,update it and it will have more chances to get added to tf2

Definately needs improvement but it's pretty neat regardless.
Also volvo make this a neon annihalator reskin pls.

Not a bad concept, but you should build on the modeling, it looks a bit "off" in the TF2 universe

interesting needs work