Personally, I am against it coming back. If every officer online rolled on most banks that happen now with an MK and level 3 vest the rebels wouldn't stand much of a chance. And before someone goes off with the "Oh you are an LT and get an MK anyway so what do you care if others get one", think about it. If you are robbing the bank with 7 people all with MKs and there are 10 officers and those 10 officers all come with an MK the numbers just tipped in favor of the APD. Yes, skill comes into play, but if the cops severely outnumber the rebels at the bank and everyone has equal firepower the cops should win. If the cops win every time, where is the fun for the rebels? People are already complaining about the balance between officers and rebels. I see swat coming back and giving everyone an MK as just another thing to swing the balance towards the APD.
A solution? Bring swat back, but give everyone rank based weaponry. Everyone gets a level 3 vest. Constables get an MX, Corporals, and Sergeants get an MXM and LTs and Captains gets an MK. This way there is an advantage to swat other than the strider, but you don't have the entire APD rolling around with MKs.
Of course, any change to swat would require code, though if it is to come back at all it requires work on the part of the devs.
TLDR: swat coming back the same would make cops more powerful, if it comes back give the officer the weapon they would normally (be able to have) on patrol.