I finished that mission last night after spending one evening prior to that on it.
Well, I made it with only two of my men surviving. I lost everything and everyone else.
At the end, the scary part was that, even though they were no longer able to use their main guns, two heavy French tanks in the North of the map still had their crew inside them and had to be convinced otherwise. One of them actually still hat a working coax MG, which luckily proved useless against my men crawling towards the tank.
Since my two men only had their rifle, and MG34 respectively, they shot each tank until finally the crews jumped out. Luckily, crews bailing are rather panicky, they could be dispatched easily.
What made this whole final bit somewhat tedious was the fact that one of my men didn't like the close proximity to the disabled tanks and kept panicking, running off for a while, then coming back, running off, coming back.
But in the end, I finished the mission successfully.