What mechanic determines the points obtained when bombing?

I used 8 napalm 500 kg in an airfield and got 198 points, then, i used 12 fab100 kg bombs on a base and got 800 points, yesterday i saw guys with the A H1 use HVAR rockets agains an airfieldand they got nearly 1000 points each time, i thought it was as simple as “more tnt = more dmg = more points” but i am confused.


For some reason, napalm bombs reward less points than the normal bombs.