The Lancaster Bomber was as unsuitable for marine operations as the Liberator was for Bombing.
errrm just as a point pf record, the RAF used Lancs in the MR role post WW2 (admittedly after we had to give the B-24s back) and the Shack was a direct descendant - I suspect instant death awaits the man who slanders 'The Grey lady'
Several sources state that the B-24 was actually a better bomber than the B-17 - unfortunately it didn't have 'filmstar looks'
Regards
-Nick