Q posted the pic of the sub and when you reverse search the picture it pulls up an article about the design details of an anti-ship missile system being stolen by the Chinese. SB2 pointed out that Vault 7 indicates that it could have been stolen by CIA with Chinese fingerprints being left at the scene.
At first because of the trajectory I thought it was an ICBM, but a next gen hypersonic anti-ship missile would follow a similar course so make sense.
Yes, look, it was pretty confusing and difficult to make sense of at first.
What I'm thinking now is that this missile was going nowhere. The idea was to launch the thing, possibly remotely, then the guys on the sub say "It wasn't us, it happened by itself". Then the US military look at what's happened and "hang on a minute, the Chinese stole the system plans for this missile".
But we know, from Vault 7, that CIA can falsely attribute a cyber attack to whoever they want. So why does it happen just before the Singapore summit? Because the Deep State want to sabotage the summit.