Reminds me of when me and my three friends were playing Halo years ago. We were playing through the co-op, taking turns to play in pairs. We were stuck on one of those bridges across a chasm on the Halo itself, you know where there are like 30 Covenant guarding one end and a hunter either side blasting the crap out of you?
We'll we'd been trying for ages to get past, attempting to pick off all the covenant carefully, edging forward along this bridge, getting nowhere. The other pair had just taken a really long go, waiting for their shields to recharge each time, then peeking out and shooting, but had eventually both died.
Me and my partner took up the controllers, looked at each other, and without saying a word, just charged down the bridge guns blazing, chucking grenades left right and centre. We burst through the Covenant, and legged it through the doors at the end. Then handed the controllers back and said, 'There you go, easy'.