>No it wouldn't, as long as the target is military and you didn't have opportunity to killed him in base it is fine.

"Opportunity to kill in base" is completely vague and varies depending on the military tribunal that will try you. Israel has, AFAIK, never said that there was no other way to kill those people.

>At most you could complain it is violates proportionality however no car bomb would kill 100 people.

https://en.wikipedia.org/wiki/List_of_mass_car_bombings

Plain disinformation

>Not to mention your analogy is flawed - hezobllah doesn't have any marked bases.

This line of thinking justifies bombing (with massive collateral damage) any partisan /resistance movement that is constantly on the move. Which I guess makes sense since that is what Israel did a lot in Gaza.