"Hey, realm, I'm applying for electromagnetic shielding as a lieutenant colonel to prevent other contestants from using native technology to get my information," said Sheyan loudly.
Sheyan had already suffered from something similar in the Jurassic Park world, where his every action was monitored via a satellite. Therefore, he was familiar with the procedure of requesting for electromagnetic shielding. Furthermore, he was now a lieutenant colonel, so the process had become even more convenient. After paying three achievement points, everyone in Sheyan's party was shielded.
The shield was naturally limited in some ways. First of all, the shield was only effective against contestants of lower ranks. Secondly, if other contestants made their own satellite and launch it into space, Sheyan's jamming shield would be invalid against it because the shield was only effective for native technology.