The WW2 Special Heavy Crossbow Sites truth / fiction? Roger Cook and Tino Struckmann

After the last episodes of Special projects where we have visited the heavy crossbow sites, a lot of questions have arisen, both yours and mine. So on Sunday Roger Cook will join us live and begin to piece together what was and what could have been.
During the war some of the largest bunkers and structures were constructed in order to launch or fire the 3 main Wunder weapons of the 3rd Reich. But do we know everything there is to know about these, is what we are told today is established history really the full story. After visiting these sites and read the Allied post action report from the sites themselves, it appears there are a lot more guessing then facts.
Roger will join me in trying to sort these out. And take your questions