I'm not asking for much, I'm not asking to add a
Heat-Seeking Rocker Launcher, a
Flamethrower, or a
Minigun.
Make it very expensive like
$7000 per missile (Also it's a nice incentive for the people with large amounts of money like
@Kitemmurt1 to spend their money). Make the Rocket Launcher sellable by some illegal Weapon Dealers (NPCs) somewhere in the town (especially near the Docks, as if they had military access to sell the Rocket Launchers and missiles on a black market).
The maximum carriable will be 2 missiles (the rest could be stored in a car trunk, but that's another suggestion).
I mean look at that Babushka,
she WILL BE ABLE TO PROTECT her house from corrupt
cops. If you downvote this suggestion,
you have no heart!