GTA 5 Online Secret Location Section 3 Humane Lab.This Secret location in The Humane Labs Section 3 on GTA 5 patch 1.15 is only available when doing this secret , The Humane Labs Section 3 is a hidden secret facility is now available on GTA5 Patch 1.15. the secret Humane labs in section 3 has a large under water tunnel that leads out of the Humane labs facility. playing GTA5 online you can not access the Humane labs secret area Section 3 Hey guys in this video i am showing you a really cool deathmatch and secret location of section three of the humane labbr br this video is about the GTA 5 Online After Hotfix NEW Secret Humane Room Glitch 1.