The SCRA does not remove the obligation to pay credit card debts - it only reduces the maximum allowable interest rate that can accrue on those debts during deployment/active duty, and prevents collection lawsuits or judgments during the same period.
Capital One has generally been pretty easy to work with, for me at least. They may need to adjust his interest accrued during his deployment, which may be enough to overcome a missing minumum payment or two, depending on his balances and rates. They will likely also agree to waive late fees, but unfortunately there is no guarantee that they will agree to remove late payments. Thank goodness it's only four, which is bad enough, and not a years' worth... hopefully they will do as PP mentioned and agree for the good karma if nothing else.
