User blog comment:SomeoneYouUsedToKnow/SYUTK's V5E12 - OOOOOOOOOOOOOOOZZZZZZZZZZZZZZZZZPPPPPPPPPPPPPPPIIIIIIIIIIIIIIIIIINNNNNNNNNNNNNNNNNN - Impressions/Recap/@comment-34633327-20180110233849/@comment-26397825-20180111035351

We did see a Grimm use tactics - the Beringel threw a Beowolf at Ruby so it could attack her faster, and the Goliaths have been hanging back and waiting for the opportune time to attack. Why they weren't featured in the Battle of Beacon, I don't know, but they are apparently intelligent enough.

We also have seen more than just a 1v1 fight that was monitored by Glynda - Pyrrha vs CRDL. It was technically a teamwork traing fight for CRDL (which they failed) and a greater numbers fight for Pyrrha (which she won).