Well that special suit ascent is for sure only possible in shallow waters. In several hundred meters depth you'd get killed.
Capsules are more difficult. Now if you operate more often in shallow waters and the threat level in deep water is reduced, (post cold war era) it makes sense to introduce that method instead of having none, wich seem to be current practice.
Capsules are more difficult. Now if you operate more often in shallow waters and the threat level in deep water is reduced, (post cold war era) it makes sense to introduce that method instead of having none, wich seem to be current practice.