Board Thread:Questions and Answers/@comment-3444885-20141210002159/@comment-1504072-20141210133214

What we know for sure is Big Boss knew about LET, and that he never wanted children (at least those that would be produced by LET anyway). He does not acknowledge the existence of any clones in Peace Walker (or that EVA volunteered as a surrogate mother), which is where the ambiguity comes in, regarding whether he knew LET had been successful or not by that time in producing viable clones. He learns that this is the case at some point, but when exactly is unclear.