One rule, the objective doesn’t count.
I’ve gained 300 xp with a single shot by taking out a snitched rhino I had already hit with a body shot, if you still get spotted xp for your own kills, then it was 370. (it’s 70 xp for spotted assist, right?)
I once gained 411 xp for health insurance, not sure if this was glitched or something, but it happened. Entirely possible I’ve earned more and never noticed

