Yep, they exist. I have a pic saved on my computer… but I can’t post it.
Also, I recall that there was a private video on Splash Damage’s YouTube channel that was about Kira’s introduction. That vid included pictures of Javelin’s model and how the rocket launcher worked.
Left click was a regular old rocket launcher, fast projectile speed. Alt-fire didn’t ADS, but instead launched a slower moving laser guided rocket.
I didn’t save the video link… which I regret. But it’d be under NDA anyways.