So to hit faster in mission "the pit", using pistol is the best counter fact?

Erm wanna ask also in Sniper Fi ... how do I survive in Veteran Mode .. >< ?

From my understanding there are coming with different advantages:

Here's the common scope attachment
- Red Dot - it was the shorter of sight ranges compare to the other 3 scopes, however it aims very comfortable in close-mid range combat
- SCOG - it provides longer range than the red dot and holographic but the sight were like the sniper scope which is shaking while in sight and yet you cannot hold breath for steady
- Holographic - the sight range was farer than the red dot which able to aim enemy in mid-long range comfortable but in close-mid range, sometimes I felt holographic zoom too much >.<
- Thermal - Almost like a sniper scope and always looks like stable but it zoom very far..... suitable for long range uses and also ... Thermal was the only scope to scout the enemy inside the smoke screen