I submitted a support ticket on Friday, asking about the Crossbow and BFG that are missing from the Campaign.
I got one reply from support and my ticket was "Escalated" on Monday...here we are on Wednesday and so far support has not replied to my ticket regarding the inquiry.
At this point: I find the silence regarding my question to be very telling. It is clear the devs have not gotten back with UbiZuzu about this question. If Ubisoft had no plans to add the Crossbow, BFG and knife take down, why won't they just come outright and say "No, we are not going to add these." Instead they are extremely tight lipped.