How do you get grunt on your team in Mass Effect 3?

To get Grunt on your team in Mass Effect 3, you must first ensure that you saved him during the events of Mass Effect 2. If he survived, he will automatically join your squad in Mass Effect 3 as part of the Krogan forces. Additionally, completing the "Priority: Tuchanka" mission allows you to interact with him and solidify his presence in your team. Make sure to complete any side quests related to the Krogan to strengthen your alliance with him.