I have a few that has improved my game.
AilClouds 2.0
AilMoon
AilSmoke 1.7
AilWhiteInterior 1.0
BRF 1.1 HP balance
BRF 1.3 full
Capthelms Lighting Effects mod for sh5
Capthelms SH5 Audio Mod
Church's SHV 1.01 Keyboard Commands v1.1
Conus' Graphic Mod 1.1
Critical hits 1.1 Torpedos
Electric torp wake removal - wamphyri
Free Cam Tweak 1.1 - Regular
GWX Compass Rose Grid for SH5
ImprovedWaves_Improved Pitch&Roll
impurity blue
MightyFine Less Annoying Footsteps 1.0
MoraleMod
NDB,NDH OM#1 - No Dialog Indicator
NewUIs_TDC_1_1_0_ByTheDarkWraith
No Surface Hydrophone v2
No Umark
Reboot's Hot Soup 1.0
RemoveLogoIntroTheDarkWraith
SD_NewMapColors
Window_Lights_Redone_V1