Hint:
You need to link all tunnels from one side to all tunnels on the other side to pass it. You can’t pass if one of them don’t have a linkage, after reading that I believe that our society is failing! How hard is it to read :/
alot of subtle hackers, 100% and still have the score of some of them people, and on hard rockstar difficulty, I call bullshit guys :). especially when I use star power on good parts, GJ hackorz.
To fully damage a specimen, shoot him in the limbs 3 times each with the pistol,crossbow,machinegun, and the rifle. From there you stab him in each limb including the head 3 times and use the nail gun on each limb and the head 3 times. Finish him off with a jaw shot by using a stick or boxing gloves loads of times, or you can use crowbar and bat a few times, but if you really want to you can use the fan in the objects section to get rid of his jaw for you.
 "Abobo's Big Adventure"){kind=icon}
 "Super Samurai Sweeper"){kind=icon}
 "Proke"){kind=icon}
 "Arzea"){kind=icon}
 "SCGMD4"){kind=icon}
 "Defender's Quest (lengthy!) Demo"){kind=icon}
 "City Siege 3: Jungle Siege"){kind=icon}
 "FIVE"){kind=icon}
 "Santa Rockstar 4"){kind=icon}
 "Earn to Die"){kind=icon}
 "Lab of the Dead"){kind=icon}