Converted to draft. I still have some questions on the wording (see post above).

I suspect capitalization is more in line what we're doing / intend to do. But then @Web-eWorks is the only native speaker here.

I suspect capitalization is more in line what we're doing / intend to do. But then @Web-eWorks is the only native speaker here.

OK, fixed that.

I wonder if the message should be the same for both ECM types. 'Activating Advanced Electronic Countermeasures' sound a bit too much.

Sorry about the response delay. Ideally, we'd differentiate the two types of ECM equipment separately via an icon or some other visual indicator, so I'm generally in favor of using the same "Activate Electronic Countermeasures" tooltip for both. I don't think it makes sense to have basic and advanced ECM generators installed simultaneously and not activate both when attempting to defeat a missile, so having separate activation buttons isn't something we'd be aiming for.

so I'm generally in favor of using the same "Activate Electronic Countermeasures" tooltip for both.

Yes, this sounds better. Fixed!

I think I'm happy with the PR now.

There should be a different icon for both types of ECM (single and double thunder, and as far as I can see, the icon set is set up that way)

Yes, the icons are showing correctly.