Hey Herr_Reitz,
This is a good topic to discuss because using strategy in random battles is a good thing (doesn't always work out).
Many of the things that you have posted are good tips for players of all skill levels. Let us go over some of them.
Mini-map awareness is important! Learning this is one of the pillars of the game IMO.
"Full broadsides to the reds", this is the skill of learning to angle. This is very important in BBs and cruisers to mitigate damage.
When it comes to random battles strategies work some of the time! That is part of the joy of randoms, you cannot predict what your team or the enemy team is going to do. My advice to you captains, is to learn from your mistakes and get better individually. If you make it a point to get better at the game yourself, the other things tend to fall in line. You can do more damage, get more kills and ultimately get more wins. Granted there will be some heartbreaking losses along the way but as you learn the tips and tricks, you can turn some of those losses into wins.
I would suggest:
Watching or reading reviews from Community Contributors that have covered new ships.
watch replays of matches that you think you might have been able to do something to different to affect the match.
Make sure to dissect your own play and see what happened? Maybe positioning was wrong? You stayed on the failing flank too long?
Understand that some battles are out of your hand, you cannot control other plays actions, only your own!
You might start a battle with what you want to do (strategy) but the game goes downhill, learning to adapt as the game evolves is very important!
Captains what else do you suggest to your fellow captains?