You can do quests like "solo hard or easy mode" and "beat easy mode 5 times" if you if you got upgraded titan camera or speaker but I recommend joining a public server for "beat insane mode" just alot that a bunch of times and it would take around 6-8 hours of gameplay
Bro the upgraded titan tv man is so op can beat three g-man lol g-man 1.0 one shoot g-man 2.0 one shoot g-man 3.0 two shoot very op he is the strong titan