How do you Cheat on Team Fortress 2 PC?

Answer 1

you can download cheats for any game these days and counter strike is still one of the most played FPS game these days and it is very secured by VAC anti cheat system they update their servers like every month and so hacks get out dated and people get caught if you get caught cheating in a vac secured server you will be banned from that server and you might even be banned from entire online community so you will not be able to play at all you will have to make new steam account and repurchase the game from online store. You can get the hacks and play on none vac secured servers and play there without being caught by VAC but other players can still report you in. You can tell if server is VAC secured or not by looking to the left of server name and seeing a Shield near it which means it is Secured.

Answer 2

You can't cheat in TF2 as it is protected by VAC (Valve Anti-Cheat). By using VAC, Valve has identified and banned over 1.5 million Steam accounts and as of 2013, it is used in over 60 games on Steam.

The one fault of VAC is that it cannot identify content hacks which affect the texture of objects. This is because VAC identifies hacks through altered codes or additional ones. Changing the texture of objects can greatly advantage you, for example, invisible or partially invisible walls, allowing you to see players without them seeing you.

So that legitimate, non cheating gamers could play without being disadvantaged, Valve introduced "Pure Servers" to all Source games (games run on the Source engine) which kick don't allow content hacks.