I just want to thank Widerstreit again here for making this.
And just to clarify, my suggestion comes from The Great War mod for the original CoH altho the difference there is that trenches are smaller but wider sections and it's basically just one sandbag being mirrored with the use of SCAR but you can make some pretty interesting stuff with it:
With that said, Wider has improved upon the design immensly. For instance, the trenches in the above picture are visible in the Fog of War, his are not because of him using the British slit trench blueprint.
I also asked him to make the remove ability so the user can remove a section of the trench in order for team weapons like Pak 40 AT gun could move through the gap.
I'll end my post with some references of the trench systems extensively used on the Eastern Front by both sides as well:
Above picture shows some German soldiers resting in a trench circa 1941-1943, below picture shows civilians digging trenches on the Kursk line.
So all in all, if these trenches are added it would make complete sense for the Eastern Front Armies to have them while the British and OKW get the slit trenches that Wider made as well which are also a vast improvement over the ones we currently have in-game.