The tiebreakers against Milwaukee in order:
Head to head - Currently 0-2 in favor of Milwaukee. Best we can do here is make it 2-2 and move to the 2nd tiebreaker. Milwaukee obviously can still win this tiebreaker.
Division leader - Useless since we are in the same division and would be tied.
Division win-loss percentage - Neither team plays another division game except the 2 against each other. Current records are Detroit 5-9 and Milwaukee 7-7. Best we can do again is tie it and move to the 4th tiebreaker. Milwaukee can still win this tiebreaker.
Conference won-loss percentage - Including the 2 against Milwaukee, we have 1 more conference game (NYK). Milwaukee just has the 2 against us. Current records are Detroit: 28-21. Milwaukee 29-20. Both teams can still win this. Milwaukee has an extra conference game because they played Atlanta in the semi-finals of the in season tournament. I don't know if that game counts or not for determining tiebreakers. If yes, they can't tie and no other tiebreakers are needed.
Better win% against playoff teams in own conference - No clue what the numbers are here.
Better win% against playoff teams in the western conference - No clue what the numbers are here.