[John Pancoast]

Kapitan, the tactics I listed are ones I use after playing AOD over the decades though it is harder to escape in it vs. SH3 for various reasons, some of which are below. It's easier to do/provides more escapes in SH3 vs. AOD.

I.e., in AOD when you go that deep, you have two choices: 1. Not have silent running on and your compressed air/pumps will automatically eject the water coming in so you can maintain your depth to a certain extent; even this has it's limits of being useful and the Chief will sometimes tell you you have to rise because the air/pumps can't keep up.
Besides not being on silent running, the problem with this tactic is that unlike in SH3 using compressed air in a blow in AOD makes noise that attracts escorts and of course it also lowers your compressed air amount that is left to use until you surface and recharge it.
2. Use silent running but then water comes in/you sink much quicker than in SH3 even with Stiebler's silent running patch.
The only way to get rid of it is #1 above or go to 180 meters or less, both of which can cause trouble.