Greetings and salutations, Let me start off and say that I'm new to this site and have briefly played SH3 years ago. Right now I'm playing SH4 with the u-boat add on and will be buying SH5 next month. So far I'm loving the game but there are little things that irk me. For example my deck watch doesn't seem to ever want to take there post. I've gone and manually rotated my crew and that fixed it for about 5 seconds then they got lazy again. I also have no alarm warnings, klaxons, or anyone yelling battle stations when I give the command. Again nothing game breaking just a bunch of little annoying things.
Now I want to mod both SH4 and 5. My first download will be the mod manager. Forgot what it's called. I would greatly appreciate mod suggestions from you guys. I would prefer to use mods compatible with this manager as it will make my mod management that much easier. When you list your mod suggestions please say whether it is for 4, or 5. Also if you could provide direct links to your suggestions that would be a plus.
Now to start off with I need my crew to function properly. This means I shouldn't have to wonder where the hell they are lol. Also if I can make them behave more realistically that would be even better. I also want all my alarms to sound. I want to hear battle stations called out followed by the alarm. I want my dive klaxon, and a overall sound improvement in general to be honest. I want to hear depth charges, ships getting closer, ships breaking up under water ect ect. the stock sfx are really poor and or too soft or non existent.
I want fire to actually cause damage. I want a massive graphics overhaul including realistic environments and weather affects as well as better explosions. One thing that irks me so far in 4 is that the ocean is ALWAYS calm. That's not realistic for me. I want everything to look as real as possible. I want fuel, battery, o2, and co2 to have real life values based on there real life counterparts. A mod that shows enemy fov would be outstanding. I pretty much just want to have the best and most realistic experience possible with 1 exception. The one thing that I really don't want to change is the AI difficulty. I am by no means a expert at this game. I'm not a noob either. I would say I'm on the low end of the experienced spectrum. I know what I'm doing but still need to refine my skills and tactics.
Right now in 4 I'm just re learning how to play the series so I'm playing with unlimited everything and auto torp targeting. When I play 5, I will have all settings set to realistic with the exception of the torps as I royally suck at math big time lol. Any help would be greatly appreciated and sorry for the long post. This is just a series that I'm really in love with.
EDIT, I would also love some added missions to prolong my enjoyment

EDIT 2, In regards to sh5, I would love my crew to speak German at all times but my notification journal must be in English so i can understand what there saying. EDIT 3, I guess I should mention that I'm using the steam version of sh4. I've read that it can be difficult to mod with steam so I'm putting that out there. In regards to sh5 I know i need the gold version to save myself a headache. Is it ok to buy the gold download version from amazon or do I (NEED) a physical copy in order to mod?