Crush depth

[Brons]

I just started a new campaign and I wonder what the crush depth of the starting submarine is. I'm running these mods (not sure if that matters):

Generic Mod Enabler - v2.6.0.157
[C:\Games\Silent Hunter 5\MODS]

Magnum_Opus_v0_0_1
Remove Steelvikings shadow mod
FX_Update_0_0_16_2_ByTheDarkWraith
IRAI_0_0_30_ByTheDarkWraith
IRAI_0_0_30_No_hydrophone_on_surface_No_Aircraft_s potting
Anti-Lag
Speech Recognition_MiTons_NewUI_Editon_v0.3_english
NewUIs_TDC_6_5_0_ByTheDarkWraith
Manos Scopes-patch for 8x5

The hull of my sub is badly damaged (all individual systems are at 100%) and I went down to 60 meters and I died. Is this because of the damage? It should go much deeper undamaged, right?