To counter an opponent with a strong forehand loop, I would focus on varying my placement and spin while employing a mix of defensive and offensive strategies. First, I'd aim to direct shots to their weaker backhand side to exploit potential vulnerabilities. Utilizing a low, heavy underspin on my serves could disrupt their timing and prevent them from executing powerful loops. Additionally, I would implement quick, unpredictable changes in pace and angle, such as sudden drop shots or deep drives to the corners, to keep them off balance. I would also be prepared to counterattack by anticipating their loops and positioning myself for aggressive counter-hits, aiming to capitalize on any high-balls that result from their aggressive play. Adopting a strategic footwork pattern would enable me to maintain optimal positioning for handling their forehand while minimizing the effectiveness of their strongest weapon.