Question: If you break the silence of Kingsman, how come Charlie and his family didn't end up in the body bag?
Question: When Merlin stepped on the land mine, why didn't he just wait there until Eggsy and Harry completed the mission? Surely he could have just stood there, then later on they could have called in bomb experts or use Statesman resources to get him off that thing? Eggsy and Harry could have easily taken out those 5 guards.
Question: When the cable car is sliding down the mountain, they use a parachute with the Stars and Stripes on it. Is this a reference/tribute to Roger Moore's Union Jack parachute in "The Spy Who Loved Me"?
Answer: Yup.
Question: How did Harry know that Agent Whiskey was a rogue agent?
Answer: Harry probably believed Whiskey told the Golden Circle where they were since none of them were followed. Then there is also that Whiskey shoved the antidote out of Eggsy's hand he started to suspect he did it on purpose.
Answer: While nothing is ever presented on screen to show which side he was on, there would be offscreen time to show evidence where Harry might have suspected him.
Answer: At the time, these people only had a really short time to save the world. Merlin thought that, with the landmine, he could sacrifice himself along with many guards to save the world.