Will the Allies be faced with a "dead zone" in the mid-Atlantic where subs can operate freely?

Just purchased the game would love to run a small scenario to get the hang of it, then a full campaign.

<t> I should have been clearer on the "Upgrade All" option. There is an upgrade tool, but it applies all upgrades. Most of the time, one does not want to apply a mobility upgrade (that upgrade is prohibitively expensive in the early game). If a country starts with or researches the mobility upgrade ...

<t> One I forgot was a new unit mode/state: "Sleep till next turn and alert" - a unit left in this status from the prior turn would prevent flipping to the next turn unless that unit has been moved, or the alert status reset. One of my big frustrations has been forgetting about an out-of-the way ...

<r> My wish list after about 100 hours with the game.<br/>
<br/>
1. Two autosave files: One a full turn back.<br/>
2. Integrate anti-tank into infantry units by making it a fourth upgradable field. Antitank operating as a separate class of unit doesn’t make sense on this scale.<br/>
3. Allow ...