not a war in history was won with weapons alone. Logistics wins wars.
The only two caveats I would throw up is that you should standardize on MILITARY GRADE WEAPONS. Not converted sporting guns, not Citizen home defense weapons, not things that only look 'tactical', but are not sturdy enough for the long run.
A single fire fight can put more wear and tear on a weapon than a life time of plinking at the range.
Second, make sure your training is up to par. Make sure your spare parts, knowledge of how to repair your firearms, and the mind set of your family is up to the task.
