help with running gta v on xbox 360

hello my friend has downloaded gta v for his xbox 360 but when trying to run it it says that we need to go online and doesnt let us play. is there anything that could be done or any tutorial on how to runthe game? thank you very much and have a nice day !
Answer #1
i never owned a console but here are the most logical steps that follow..
1. is that xbox flashed, u didnt specify (tell as many details as possible, possibly look for this issue in the topic of the game u downloaded)
2. all instructions for cracking/being able to offline are typically attached to the .iso itself, search for .nfo file
3. it should be run as any other game on xbox, so search for ordinary instructions on how to run pirated games