The bonuses are per objective completed / defended + final bonus.
If your towers are burned you lost points, if you burn towers you gain points, if you capture mines / kill LT’s and bosses like Balinda & Van you gain points.
Its variable.
The difference between non-AV weekend and AV weekend can be a couple thousand points per game in respect to objectives.
Objectives are only so good, PVP kills are also a solid component of your honor gains, this is why things like back capping and tower / bunker defense are important and valuable.