Before anything else, set your win bonus to max. As for tactics, his formation ostensibly covers all bases, which is why it's such a widely used shape. But remember, shape is 30% and tactics 70%. You're not going to beat his shape, you need the right tactics. It would help if u had wingers in your squad(wide attackers, not wide midfielders). Go 4 across the back, a central defensive midfielder, a central midfielder, 2 wingers and 2 forwards(you need two seeing as you're desperate for goals). Forward Arrows on full-backs and wingers, attack down the flanks, play hard attacking, hard tackling, close down whole pitch, man marking, counter+offside trap. This is the best way to counter his shape but nothing guarantees you a 3-0 win. Just to put you at ease though, I've fielded weak sides in the first leg in cup previously to spare some rest packs, lost and then gone on and won the tie, winning the return leg by 4-5 goals. I don't really bother with first leg for I back myself to recover any deficit from the first leg. Last season, I lost the first leg 4-1 at home in the third round, but salvaged the tie winning 5-0 away with my first XI.
*Nota bene* I'd actually suggest starting with 2 central midfielders and 1 striker rather than 1 central midfielder and 2 strikers and then throwing on a striker for one of the midfielders if you're struggling to create. Last thing you need is having your away goals wiped out by him.