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To put things simply, never opening Grunt's tank is very much like leaving him to die at the end of Mass Effect 2, and the results are primarily seen during a side mission in Mass Effect 3. RELATED: Mass Effect 2: What Happens if You 'Cheat' On Liara, Kaidan, or Ashley? With that established, information on the ramifications of this choice can be found in what follows. Players that are attempting to reach the end of the Mass Effect trilogy without any spoilers may thus want to revisit this guide after concluding their playthroughs. To note, providing a thorough explanation of the consequences for leaving Grunt in the tank does require that some story details from both Mass Effect 2 and 3 be revealed. That said, it is possible to never release the Krogan in Mass Effect 2, and this guide will fully detail the consequences of that action. Upon interacting with this tank, players will be given the option to open it, and those that do will gain access to a new squad member in Grunt.

In the early stages of Mass Effect 2, Commander Shepard takes possession of a tank with a powerful Krogan inside, and it is ultimately brought aboard the Normandy.
