Fixed / mobile gun platforms

[Destraex]

That is not realistic. Because you should be able to render a unit incapable of fast movement by destroying its transport. Also other units should be able to tow the guns in a pinch. Supply trucks, infantry half tracks, jeeps etc. Plenty of units had their transport depleted or destroyed during battle and found it hard to be mobile hence forth.

Just like in red dragon where you lost your APC transport or truck transport for your infantry.

Otherwise static guns may as well be self propelled modern army with the gun attached to the carriage permanently.

 

[Helljumper]

maybe they can have towed guns and some high calibre fixed guns (high points and kind of an important thing), loosing them should have a decent impact on you if you are playing all defensive. from the axis pov i think its quite important to have towed guns in game