Rex's Suppressing Fire can theoretically grant the team 75% TM. Sabine can Stagger the whole enemy team. Chop assisting basically every turn means that everyone gets massive cooldown reductions. Hera can reduce the cooldowns of allies. Keep this up and you're using Sabine's Demolish and Rex's Suppressing Fire every other one of their turns. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.