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This becomes a problem the later the game gets.
Fighters and tanks continue to improve, but
The Engineer’s installed weapons do not evolve.
This is against Shermans and Tigers, but your engineers still have 50mm or so anti-tank guns installed.
To deal with FW190 and P47, it installs about 20mm anti-aircraft guns with 20 rounds.
The fighters and tanks you face can easily dismantle your squad with rockets, 250 kg bombs, or 80 mm high explosive shells.
The model of the anti-aircraft gun was changed through several adjustments, the angle was limited, and the concept of overheat was added, resulting in a penalty to the rate of fire.
Anti-tank guns require installation and removal due to their unique movement method.
Even if an engineer takes the time to install it, it is not particularly useful in that it can be easily removed.
improvement:
Tier 1 Engineer: Through squad upgrades, you will receive a perk that allows you to install either an anti-aircraft gun or an anti-tank gun.
Choose between two anti-aircraft guns, two anti-tank guns, or three anti-aircraft guns and one anti-tank gun.
Tier 2 Engineers can access better anti-aircraft or anti-tank guns through squad upgrades with the above perks.
You have to choose just one. Anti-tank engineer or anti-aircraft engineer.
Anti-tank gun: Get rotation mode through key 3.
In this mode, you can only rotate while holding the support. Other actions, such as shooting or prone, are not possible.
Common: If there are other engineers in the squad, they can request ammunition supply through the circular menu or the F key. It’s faster than dismounting and reloading.