Hi,
I would suggest that dog units can handle the same mission as the regular police unit the only difference is that the dog unit have a dog with them. And I would like to see a "missing person" mission so you can use dog units and the police helicopter.
And regarding the police helicopter I suggest that it shall "hover" in-game in all mission instead of go down and land. I would also like to see a "car chasing/vehicle pursuit" mission from one city to another. So we can use the helicopter more.
Looking forward to receive some nice answers.