These seem to be dreams of persecutory nature. It would be important to note when they started to occur.
Repetitive dreams generally manifest in order to draw your attention to something that you're not fully dealing with/facing, or when there is an unresolved issue at hand.
The dreams can be seen in their symbolic representation. Being shot by others, could be associated with you feeling as though others are attacking you in some way ex: challenging your judgment, attacking your self esteem, sabotaging your life in some way ex: work, friendships, family, etc.
It would be important to also know what happens after you get shot. Do you find yourself dying, do you defend yourself somehow, do you remain invincible, etc.
Talking in dreams may occur both during REM and non Rem sleep. It could be a hint of a sleeping
disorder but that can be confirmed or ruled out through a sleep study.
Think about what was happening in your life at the onset of these dreams and may be going on still at the moment.