That gun that Patch uses? I cannot aim down the sights for that thing. It's not that it's hard but the animation is trash and I hate it. Besides shooting from the hit means I hit anything with it anyway so I don't get it. I can't say I'm a fan of the ranges either but I can live with it I guess. But sometimes it can feel like the range on say, the soldiers AR is a tad short. But that's just me. I've learnt to adapt but it was a strange one.
I play in third person exclusively so having to aim down sights sometimes is hard and jarring. In games I enjoy when I aim down the sights in third person it just makes your reticle smaller and zooms in the camera a tiny bit which I think is better. But that's me.