For me the best game is headquarters or demolition cause every game i earn roughly 10000/15000 exp in both modes
Demolition is good with a spawn trap party
Headquarters is good with a party or by itself
I use an ak 47 suppressor and when i run out of bullets try to pick up any other suppressed assault rifle
Tactical insertion for easy spawning
Nova gas because it blurs the vision and slows the player down
semtex is good to clear headquarters or to throw at the spawns that your not watching
side arm isnt really needed since it will be swapped
Perk 1. Ghost Pro. Self explanatory with the effects of ghost / ghost pro
Perk 2. Slight of hand pro. faster ads and reloading is useful in getting kills quicker
Perk 3. Ninja. Silent footsteps so they cant hear you approaching
Kill streaks. Black birds are a must have, also attack dogs and chopper gunners but those 2 can be changed to what ever you feel but black bird is a top recommendation.
I think i have covered everything lmao