In Battlefield 2\mods\pr\levels\steel_thunder you can find server.zip file, open it with winrar. In there go to \GameModes\gpm_cq\64
There is GamePlayObjects.con file, open it with notepad... inside you find this text, this is one of tanks in the map. Just copy paste all the text of 1 object spawner (which can be any vechile, just read the vechile name which you wish to copy)
rem [ObjectSpawnerTemplate: US_Assualt_Camp_CH_US_HeavyTank]
ObjectTemplate.create ObjectSpawner US_Assualt_Camp_CH_US_HeavyTank
ObjectTemplate.activeSafe ObjectSpawner US_Assualt_Camp_CH_US_HeavyTank
ObjectTemplate.modifiedByUser "Owner"
ObjectTemplate.isNotSaveable 1
ObjectTemplate.hasMobilePhysics 0
ObjectTemplate.setObjectTemplate 1 TNK_TYPE98
ObjectTemplate.setObjectTemplate 2 USTNK_M1A2
ObjectTemplate.minSpawnDelay 300
ObjectTemplate.maxSpawnDelay 360
ObjectTemplate.Distance 20
ObjectTemplate.timeToLive 420
ObjectTemplate.teamOnVehicle 1
Now you have to rename this copy by editing 3 first lines of text like this example(notice number at end of tank name):
rem [ObjectSpawnerTemplate: US_Assualt_Camp_CH_US_HeavyTank_200]
ObjectTemplate.create ObjectSpawner US_Assualt_Camp_CH_US_HeavyTank_200
ObjectTemplate.activeSafe ObjectSpawner US_Assualt_Camp_CH_US_HeavyTank_200
Number can be any number but im sure first 20 might be already in use so just use some like 120 121 122 123 and so... different number for each copy.
Now you have to set up coordinates where you want that tank to spawn, to do this scroll a bit down untill you find text like this:
rem [ObjectSpawner: US_Assualt_Camp_CH_US_HeavyTank]
Object.create US_Assualt_Camp_CH_US_HeavyTank
Object.absolutePosition -373.815/61.035/-389.663
Object.rotation 15.600/0.000/0.000
Object.setControlPointId 2
Object.layer 3
copy this text and just paste it under this same text you copied, then edit these things in new copied text:
rem [ObjectSpawner: US_Assualt_Camp_CH_US_HeavyTank_200] <-- note the name again
Object.create US_Assualt_Camp_CH_US_HeavyTank_200 <-- note
Object.absolutePosition -373.815/61.035/-389.663 <--- Change coordinates
Object.rotation 15.600/0.000/0.000
Object.setControlPointId 2
Object.layer 3
if you dont change coordinates, it means this new tank spawn you created, spawns exactly same spot where original tank spawns, dunno what kind of problems it cause but its better to change coordinates, but just a lil bit, those numbers are metres.
first is West-East, 2nd is up-down (underground-air, so dont change this unless you want to spawn it 100 metres from ground and falling down

) 3rd is north south.
These coordinates without BF2 editor you just have to guess, it might spawn inside tree, inside rock, inside building or another vechile, or just middle of flat area. So this is very painfully to do without editor but it can be done.
now your additional tank is in 64 players version of the map only