On the AI. I have not had much depth charge experience yet but with the IRAI mod surface wise is extremely realistic in my opinion. Depending on weather AI ships see you as they would and make evasive manoeuvres or in the case of destroyers, make for you and start firing. In SH3 I could get really close to ships without them bothering but with this AI mod they see you. Great example is scapa flow. In SH3 I remember wiggling in and out of destroyers in the harbour and no one seeing me and this was on a clear night. In SH5 i got spotted trying to do a similar thing. Gotta keep your wits about you.
