Supported by any DL/DR? Think just ML/MR on the wings can be pretty exposed even with 3 DCs. If nothing else you will give up possession of someone goes down your flanks.
DL/DR+ML/MR can defend against anything!
yes I got DR,DL I'm having trouble beating 451 V with my defensive 451 flat .
then just by leaving the DL,DR ML MR without arrows I can manage to defend well against AML,AMR ,then I guess putting red arrows on DR,DL is not a smart move in this case ?