The Club

Doing each level on Insane is not particularly difficult if you've already got a good grasp of the game. What I'll do is explain what each of the levels are and any quick tips.
You do not need to win the tournament .... just survive. You'll have 5 tries at each level.
It's possible to make a backup of your save on a USB stick, so if you are struggling with a level you don't have to start the whole tournament again. Just reload your save if you fail 5 times.

Manor House

Level 1 : Sprint
Just play through the level, take your time and get to the end. No time limit

Level 2 : Sprint
Same idea as Level 1

Level 3 : Siege
Stand to the left behind the metal sheeting. Only need to look out for guys coming from the left and right behind the walls. I didn't take anyone else out as no need to and it stops another spawn from coming left or right if there are the max enemies on the level

Level 4 : Survivor
Run up the stairs and through the door. Take the next door on the right and then head to the open doorway to the right in the next room. Stand behind the door and wait for the 4 minutes to tick away. I only killed 3 and had 98 health left

Level 5 : Time Attack
Make it to the end before the time runs out. 2 laps. Shoot as many enemies (this gives you a 3 second bonus) as you can and just keep moving. Health Packs do not respawn in these levels

Level 6 : Run The Gauntlet
Get to the end before the timer runs out. You get 2 minutes 40 to do it

Manor House done