http://comicbook.com/2014/09/14/was-the-punisher-being-established-in-captain-america-the-winter/
Marvel One-Shot aside The Punisher is the one character who could seamless move from throughout the MCU including Agents of Shield, and the Netflix series. Out of all the characters introduced to the MCU he's the one with the most connections to everyone.
During an interview with ComingSoon.net, the filmmakers revealed that during Captain America: The Winter Soldier, there are two separate instances when the heroes are saved or villains get their comeuppance as a result of a yellow Penske truck. Apparently, in-story, those were both the same truck and driver.
Here's how ComingSoon reported it (leaving in their commentary as well): "The man who drives that truck," Joe deadpans, joking that the driver is a candidate for a future Marvel One-Shot, "Is very highly trained. He thinks on his own terms. He's got a plan and a very specific skill set."
Marvel One-Shot aside The Punisher is the one character who could seamless move from throughout the MCU including Agents of Shield, and the Netflix series. Out of all the characters introduced to the MCU he's the one with the most connections to everyone.