Scopes.

[grumpy old man]

the scope is good for servillance you use your bio's for scanning around and quick things when you on the move but if you plan to watch your target to gather info before the attack say for a few days the when it's set up you can focus stright away
if you understand where i'am comming from i'am not to good explaining what the heads think lol
think along the lines of the Special Recconasence Regament ?

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NR think passed the grunt the gun only shoots a certain distance but the longer you are away from the target the lest chance you have being knocked