September 17, 2012 at 5:26 PM #1 You can drown with scuba helmet on, also happens even if you have full hazmat suit.Other mods:NEIExplosives+ v3.9 PR2Better World Generation 3 v1.1.0
September 17, 2012 at 5:28 PM #2 Scuba Helmet Doesn't provide Bubbles by itself, you need to have compressed air cells in your inventory so you won't drown.
