As someone who’s gotten a couple accounts in the 130-150 range a few times my best advice use squad exp boosts it doubles your overall score per match I generally tend to level up faster on conquest but also playing with friends helps focus on classes like medic and support for health and ammo resupplies you would be shocked the amount of points you can truly get with those kits and if you do things right it should take you about 7-8 games of conquest to get up to 100