If your going to defend a position you have to prepare it to withstand anything, not just assume the enemy is going to do exactly what you want them to do to make things easy for you. 20-25 men in a bunker will not last an hour if they get ambushed. No matter how much you might think the position is strong if the enemy catches you by surprise you need enough men to counter attack. You can't counter attack an attacking force with 20 men if they're already inside your defense.
So you need a larger bunker to enable you to house enough forces to counter any assault, rather then just the assault you hope the enemy will throw right into the jaws of your defenses.
Over confidence and arrogance based on opinion alone will get you killed.
True, they will. Which is why you need several lines of defence, each of which will need to be manned and prebuilt. But, again: We are at peace with them.
Now, for another topic:
I'd like to develop a new plane next turn. Strategic role is naval reconnaissance, with transport and commercial raiding as secondaries. This would allow us to both spot ships, attack them if it's light enough defended, and transport supplies to islands.
The design should be a flying boat, with (depending on the new aircraft engine) two or three motors. A range of two to three thousand kilometres will be necessary, with a crew of about five to ten.
As armament I'd take at least several Project 2202 heavy machine guns in turrets.
Remaining capacity could be filled either with place for bombs and torpedoes, or possibly with a single 40mm cannon - but the weight would mean no bombs nor torpedoes could be carried.
Basically, the two alternatives would be:
- ca. 5 15mm MGs plus place for bombs/torpedoes or cargo.
- ca 5 15mm MGs plus a single, fixed 40mm gun.
I'd much prefer the first one, giving it more firepower against bigger targets.