Q: What are the default sensors of drones? Or does the player pick?
If there's a default, or the GM decides, I'd assume a camera and omni-directional microphone as 2 of them.
Q: Can you upgrade armor after purchase?
e.g. Add Thermal Damping 6 to your Armor Jacket (NC 6), as to not have to buy a new one.
Asking the next one again just to be sure, to see if anything new has come up since:
Q: Can you add enhancements to sensors/Imaging+Audio Devices after purchase? What about to ware?
e.g. add thermographic vision to a drone's camera, or a smartlink to cybereyes.
Follow-up Question: If not: What are the costs for replacing a single sensor with a new one? Single-sensor costs or an entire new array?
e.g. replace the drone's rating-3 camera with a new rating-3 camera that has TV and other enhancements: 300+enhancements or 3000+enhancements?
Follow-up follow-up Question: What is the availability of an enhanced sensor camera? 5+(enhancements), or max(5,enhancements)?
Follow-up Question: If not, what is the availability of an Armor's helmet? Can you buy special helmets separately when buying new enhancements?
Take for example a Full Body Armor, which has 14 availability, 23 with all the mods. Would the helmet with TV,VE3,SL,FC have 0+(4+6+4+1)=15 availability, 14+15=29, or 23+15=38, or would it compare the sum of the vision availability to the armor's availability and take the highest? (So max(enhancements,armor) which is 15 for a non-modded armor with the afore-mentioned helmet, and 17/20/23 with a modded armor.) And must they be bought with the armor or can you buy spare ones?