These are taken from the Airdrop GSC file. These show what your chances are out of a 100 to obtain a certain killstreak reward. I spent a while sorting these out so a thanks would be welcomed . Also while checking out this file I found an airdrop called "Grinder"

    Assault Airdrop Possibilities:

 

airdrop_assault, uav,	10,

airdrop_assault, ims,	20,

airdrop_assault, predator_missile,	20,

airdrop_assault, sentry,	20,

airdrop_assault, precision_airstrike,	6,

airdrop_assault, helicopter,	4,

airdrop_assault, littlebird_support,	4,

airdrop_assault, littlebird_flock,	4,

airdrop_assault, remote_mortar,	3,

airdrop_assault, remote_tank,	3,

airdrop_assault, helicopter_flares,	2,

airdrop_assault, ac130,	2,

airdrop_assault, airdrop_juggernaut,	1,

airdrop_assault, osprey_gunner,	1,

    Osprey Gunner Airdrop Possibilities:



airdrop_osprey_gunner,uav,	10,

airdrop_osprey_gunner,ims,	20,

airdrop_osprey_gunner,predator_missile,	20,

airdrop_osprey_gunner,sentry,	20,

airdrop_osprey_gunner,precision_airstrike,	8,

airdrop_osprey_gunner,littlebird_flock,	8,

airdrop_osprey_gunner,remote_mortar,	5,

airdrop_osprey_gunner,remote_tank,	2,

airdrop_osprey_gunner,helicopter_flares,	2,

airdrop_osprey_gunner,airdrop_juggernaut,	1,

airdrop_osprey_gunner,ac130,	1,

    Escort Airdrop	Possibilities:



airdrop_escort,airdrop_trap,	10,

airdrop_escort,uav,	8,

airdrop_escort,counter_uav,	8,

airdrop_escort,deployable_vest,	7,

airdrop_escort,sentry,	7,

airdrop_escort,ims,	7,

airdrop_escort,sam_turret,	6,

airdrop_escort,stealth_airstrike,	5,

airdrop_escort,airdrop_juggernaut_recon,	5,

airdrop_escort,remote_uav,	5,

airdrop_escort,triple_uav,	3,

airdrop_escort,remote_mg_turret,	3,

airdrop_escort,emp,	1,

    Trap Airdrop Possibilities:

 

airdrop_trapcontents,ims,	6,

airdrop_trapcontents,predator_missile,	7,

airdrop_trapcontents,sentry,	7,

airdrop_trapcontents,precision_airstrike,	7,

airdrop_trapcontents,helicopter,	8,

airdrop_trapcontents,littlebird_support,	8,

airdrop_trapcontents,littlebird_flock,	8,

airdrop_trapcontents,remote_mortar,	9,

airdrop_trapcontents,remote_tank,	9,

airdrop_trapcontents,helicopter_flares,	10,

airdrop_trapcontents,ac130,	10,

airdrop_trapcontents,airdrop_juggernaut,	10,

airdrop_trapcontents,osprey_gunner,	10,

    Grinder Airdrop Possibilities:

 

airdrop_grnd,uav,	25,

airdrop_grnd,counter_uav,	25,

airdrop_grnd,deployable_vest,	21,

airdrop_grnd,sentry,	21,

airdrop_grnd,remote_mg_turret,	17,

airdrop_grnd,ims,	17,

airdrop_grnd,triple_uav,	13,

airdrop_grnd,predator_missile,	13,

airdrop_grnd,airdrop_trap,	11,

airdrop_grnd,precision_airstrike,	9,

airdrop_grnd,stealth_airstrike,	9,

airdrop_grnd,helicopter,	9,

airdrop_grnd,remote_tank,	7,

airdrop_grnd,sam_turret,	7,

airdrop_grnd,remote_uav,	7,

airdrop_grnd,littlebird_support,	4,

airdrop_grnd,airdrop_juggernaut_recon,	4,

airdrop_grnd,littlebird_flock,	2,

airdrop_grnd,helicopter_flares,	2,

airdrop_grnd,remote_mortar,	2,

airdrop_grnd,ac130,	2,

airdrop_grnd,airdrop_juggernaut,	1,

airdrop_grnd,osprey_gunner,	1,

airdrop_grnd,emp,	1,

    Support Airdrop Possibilities:

 

airdrop_support,uav,	9,

airdrop_support,counter_uav,	9,

airdrop_support,deployable_vest,	8,

airdrop_support,sam_turret,	6,

airdrop_support,remote_uav,	5,

airdrop_support,remote_mg_turret,	5,

airdrop_support,stealth_airstrike,	4,

airdrop_support,triple_uav,	3,

airdrop_support,airdrop_juggernaut_recon,	2,

airdrop_support,escort_airdrop,	1,

airdrop_support,emp,	1,

    Extra Airdrops	Possibilities:



airdrop_sentry_minigun,sentry,	100,

airdrop_juggernaut,airdrop_juggernaut,	100,

airdrop_juggernaut_recon,	100,

airdrop_trophy,airdrop_trophy,	100,

airdrop_trap,airdrop_trap,	100,

littlebird_support,littlebird_support,	100,

airdrop_remote_tank,remote_tank,	100,