Teamwork only works when you are playing with other players, not bots. This only exasperates the problem when older players leave due to the way certain aspects are meticulously implemented and others seem to be an afterthought. One of the major problems with RM's is that targets can often be aquired "blindly" without being in view of a teammate or bot. I have been in battles where I am with bots and two or three players on the opposition simply launching mortars.
Yeah bots are a whole other issue. Personally I would wait a few minutes for a match to be placed with all humans vs 30 seconds for a gaggle of bots who literally stand in a group and run into each other for the first 10 seconds.
Also, do the pings have any effect on bots? If I ping Help Me, do the bots actually respond to that or are they just off in their own little world? I don't' know if there is any sort of "How to work with the bots" instructional post somewhere, but if there are tips for dealing with them on your team, maybe that should exist.