To me this was not a question of if but when. Not the armed ground drone thing but the drone dropship.

I think we'll be seeing more of this cropping up in the not too distant future, for instance in patrol, inspection and damage control work where a ground presence is needed occasionally (or in an emergency) but where it is not feasible for whatever reason to put in a 'dog house' or automated storage facility to house a ground robot long term. This way a robot can be lifted into a remote site, do its job and then be extracted again when the job is done.

Another field where we might see this crop up is urban and highrise firefighting. This way a small unit of firefighting robots could be airlifted onto a building's roof to work their way down a building while other robots and human firefighters attack a blaze from below.