How odd. Despite lighting a fire pretty much under the feet of these two warring gentlemen, neither Oliver nor Diggle appears to have moved an inch. Um...dudes, danger is on the way!
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Arrow and Dig in the street. Standing too far apart, probably so far that they are unable to adequately ascertain the oncoming threat, thereby putting their lives in jeopardy.
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This is Felicity doing her thing. We're guessing it's going to be up to her to dole out the appropriate pep talks and/or chastise Oliver and Diggle to get them to finally sit down and talk.
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This is a nice shot of some green arrows on Oliver's back. Did you catch Cisco noting that he wasn't fond of superheroes adding color to their names on The Flash? Funny stuff.
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Tensions are rising between Oliver and Diggle, putting the two into serious danger. Exactly when will the two just go out for a damned beer and put their cards on the table? Cards...Double Down...get it?
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Here's another shot of Double Down Jeremy Tell. He'll probably be a one and done villain, which is too bad, because the more JR Bourne, the better in our opinion.
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Yep, it sure looks like ol' Double Down has a cursed deck of cards fused right to his skin, doesn't it? Those aren't tattoos at all, but an actual deck of cursed cards, if we're to understand the lore.
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Hey! It's Teen Wolf awesome dad Chris Argent! Looks like he's gone all bad as Jeremy Tell. In the comic universe, Jeremy Tell is Double Down, a con man and gambler who gained powers when a cursed deck of cards bonded with him. Huh. Waddya know?
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Nope, it's not an earthquake (unless that's a baddie's clever name), but Curtis is right where Felicity likely put him for safe keeping.
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Uh oh, Curtis Holt isn't getting the best impression of the Arrow lair, is he? Looks like he was either shot, or just thrust himself to the ground in abject terror. I'm betting the latter. We're with you, dude!
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Those tables look nice and sturdy. Awfully handy when you're dodging incoming gunfire such that Felicity seems to be doing. She's going to need to start dressing more comfortably if this is to become a common occurrence.
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Wouldn't it work better, Felicity, if you were looking where you were shooting? I mean, sure, it might be a little bit scary, but you have bigger cahones than that, right? C',mon girl! Turn around and get 'em!
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Arrow Quotes

Oliver, sometimes the greatest act of love is no action at all. It's her life. It's her choice.

Malcolm

Oliver: Over watch, we're on sight.
Felicity: Excuse me?
Oliver: Well, I thought it was time you got a code name. What do you think?
Felicity: It's perfect.
Oliver: I was gonna go with Oracle, but it's taken.