- Cap kissing Sharon: We've barely hinted that he liked her for a few seconds (at his best girl's funeral, no less), and then he kisses her and she acts like it's a long time coming? Huh? I know they're together in the comics but that felt rushed.
- IM attacking WS: Seriously? You know Cap's told IM about Bucky being brainwashed into doing things he didn't want to. I'd understand wanting to hit him. I'd even understand beating him up. But IM is literally in a blind rage to kill him AND Cap for getting in his way. I didn't like Tony before (egotistical rich boy!) but that just pushed me over the edge into hating him. It just seems out of character to go that far. I get that he killed your mom. But he couldn't help it, and you KNOW THAT. I feel like IM is better than that. Maybe he's taking out his frustrations with Pepper? And his feelings about the dead kid? If so, they don't get that across very well.
- Cap and WS: I get that he's your friend "til the end of the line." I get that you've been looking for him for years. You need to find him and help him. It's been your main focus all this time. But, don't you think there's a point where you need to let him go in to the authorities? If you think he didn't do what he said he did, investigate it. Figure it out. Protect him from T'Challa while you do that. But don't fight the cops! I get that Cap was trying to keep Bucky from hurting them, but he was also trying to help him escape. That doesn't help anything, and with the Accords in play, it just makes it worse. Again, he's a pushed to caricature-version of himself.
And then we come to Zemo's plan.
Ok. So he can't beat the Avengers directly, so he wants to get them to fight themselves. Cool. He got supremely lucky that the Accords came into play, then, cuz he obviously had nothing to do with that. Had nothing to do with Crossbones in Lagos either. Had nothing to do with what brought Wakanda into the whole thing. And yet, he was already planning his whole scheme before that.
So, his master plan to bring them to blows is to blame WS for a terrorist attack on the Accords building (which, again, he was lucky to have happening). He couldn't have predicted T'Challah's father's death and his involvement as BP, so let's leave all that out. He knows Cap will try to help Bucky and go after him. This may put him at odds with the rest of his team. MAY. Falcon will probably side with Cap, ok cool. So that'd be a bit of conflict.
How, exactly, could he know that Cap wouldn't get Bucky away to safety? And that he'd be taken to one particular secure place in Berlin? Then he found out where they get their power from and builds an EMP to knock out the power grid, because no highly-secure Govt building would have a backup power generator that would automatically kick in immediately in the 21st Century, noooo (would've made more sense if the EMP had gone off AT THE BUILDING to shut down all electronic devices, IMHO). But we're to assume that he knows exactly where they'll take Bucky, and all of the building's safeguards. He also is able to somehow find out that there's a the UN psychologist coming in, who he is, takes him out, and replaces him. Which is funny, because they say he was wearing prosthesis to look like the guy, and yet, he never seems to be wearing any when he's talking to Bucky. And there's no high-tech fingerprint scanner like on my PC to deny him entry to this high-tech building? Jeez, their security contractor should be shot.
So he gets to Bucky specifically to ask him questions about what happened in 1991, like he asked the other guy. Obviously, he already knows what happened that night. It's the only way the plan makes any sense. If Bucky hadn't been involved, there would be no point to the ENTIRE PLAN. Oh, and where did that security footage come from, exactly? Bucky doesn't have anything on him. Did the guy have it at the beginning in Cleveland? If so, then couldn't we have skipped this whole part and just blame the attack on Bucky and watch IM and Cap duke it out over him? Why wait to reveal it til the end?
So apparently, the reasoning on holding off on the footage reveal is because Zemo has a secondary plan. He wants to get rid of all superhumans, apparently, because he wants Bucky to tell him where his buddies are hibernating in Siberia. Cap thinks he's going to bring them back and control them (a reasonable hypothesis). But no, he wants to kill them...just to lure Cap and Bucky there?
Ok, so Zemo decides when to reveal that the psychologist is dead, and that, in turn, leads to the govt figuring out who he is. And he knows IM will get wind of it and say hey, maybe Cap was right. But how does he know IM will go to Siberia? That all three will show up at the same time, and that IM will come alone, even, so there's no one unbiased who could stop the fight and say hey, you guys need to take a chill pill?
Unlike BvS, the bad guy's plot is very clear. And the theme of dealing with repercussions goes through so many characters - Wanda, Cap, Bucky, IM, T'Challah. But it just relies on so many things that were completely outside of his control, and that - acting alone - there's NO WAY he could've known. Seriously, he had to have an inside guy with the UN folks. It's the only way he could've known some of this.