Flamethrower buff vs. vehicles

Flamethrower should be good vs. light  vehicles. Buffing them vs. light, and changing damage to kill most vehicles with 3 hits instead of 4. 
They are also getting an increase vs. infantry from 90% to 100%.
Their speed will be getting reduced to normal infantry, so I dont think we have to worry about them being OP. 
Slight nerf to damage vs. heavy to better define the unit as not a mid-game anti-armor unit.