Have a sniper functionality

[DaymareOn]

The only way I see to do a sniping equipment balanced would be:

• distance and angle of view made so it can be used only from a certain distance and useless elsewhere,
• a lot of heat generated so that another shot can't be done before a certain time,
• a lot of energy used so that the player is vulnerable,
• perhaps the distance is such that the target could move during the trajectory ?

Even then, i'm not sure the concept of one-shot dear to sniping can be well-adjusted for oolite. I see two roles for a sniper:

• terrorist, but we don't manage crowd feelings like terror in oolite (... oxp ?),
• anti-terrorist, with a team and sudden attack concept.