To find Fortbyte number 02 of the decryption challenge, you would have to complete all the 6-week challenges of Fortnite's season 9, to get secret loading screen number 6 in order to read the clue in the description of it. But if you are here to read our guide, it's because you don't have time for all this nonsense.
On the loading screen is written "only the best snipers can take out a holo-clock tower lamp from the rooftops of Neo Tilted". The Fortbyte is therefore located high up on Neo Tilted's radio tower. You don't need to do the challenges of 6 different weeks to unlock it, it will be there anyway.