While tear gas can be delivered from almost any range, rubber bullets are a 200 yard max ballistic item. So, BS!
These things can be armed with almost anything, especially the larger, military grade models, and once the door is opened to 'delivering payloads', it is almost guaranteed the 'effectiveness' of the payloads will escalate.
Why bother with mere rubber bullets when you can have 'steel rain'? Then go in and mop up.
Why punch tear gas rounds out of the Bradleys (like Waco) when you can just drop incendiaries and get the job done? (--and blame the residents--after all, the Ministry of information dissemination told you they were a cult, citizen!)
Just remember, lead flies both ways...