Keep in mind that locking onto drones with Sensors can be a real pain also. It's almost always going to be at a -3 penalty (-6 for micro-drones/Electric drones) and it's opposed vs. a Infiltration+Reaction test (or whatever is appropriately substituting Reaction). Even with a lock, it only adds net hits to you attack rolls. Assuming an amazing 5 net hits on the drone, that's only a one or two meter reduction on scatter average out of 4D6 - Sensor. So, assuming a rating 6 sensor system, you'd need to roll your Sensor+Perception (we'll assume Sensor 6 and Perception 3 with +6 for Attention Coprocessor/Visual Enhancement 3). You'll be rolling a total of 12 dice (after the penalty for the drone) assuming no other forces are at play. Now, the drone's dice depend on whether it's being driven by the pilot or driving itself. Assuming the best possible case, it's driving itself (Pilot 3+Covert Ops 3) with 6 dice. Average you'll get 2 net hits.
Now on the attack you'll roll Agility+Heavy Weapons (we'll say 8 + 6 + 2 for smartlink +2 for sensor lock hits) with 18 dice. Assuming the same drone is running Defense 3 as well, it rolls six dice. You'll have an average of 4 net hits. Now, you get to roll 4D6 -10 (-6 for sensor 6, -4 for net hits) to see how far your shot goes off course. Keeping in mind, that 1 meter miss is likely to completely miss your target all together. The average result is that you've still missed despite your awesome rolls.
To alleviate this, you need the airburst link, so the scatter roll would be 2D6-10. Considerably more likely to hit, but still not a guarantee despite the critical success on attacking.
