The challenge featured a .pcap file to download, after checking it for a while i found a GET request to /staff.html


so i just tried to make a get request to freewifi.ctf.umbccd.io/staff.html and i got the flag in the main web-page :

+

Flag: DawgCTF{w3lc0m3_t0_d@wgs3c_!nt3rn@t!0n@l}