2 Lead computing gun-sight for the first 10kills
It's not a good idea to enable the LCGS for new players for a limited time as it does really nothing for them at that point and gives then an unfair advantage over the regular player base. If you really want to help new players, the other suggestions about a tutorial for new players or a 'training academy' (similar to the one Air Warrior used to have) or even a dedicated new player arena (again, similar to what Air Warrior had) would be more beneficial in not only helping new players get over the steep learning curve but also increase retention rates.
If you were to give a new player the LCGS in the MA for a limited time, all you are doing is a crutch that he's going to be forced to rely on and once you remove it, the new player will flounder and in most cases, would probably end up leaving the game.
ack-ack