1. At the pistol round always buy Dual Berettas they have an outstanding fire rate and a capacity of 30 rounds. Tec 9 is also recommended.
2. When you have an ECO round spend all your money on an M249 or Negev (Negev preffered), only if you have the funds for it.
3. When you have a huge amount of money spend all your money on Dual Berettas, a Negev, armor and grenades.
4. When you only have about 2000-3000$, a good weapon is the PP Bizon.
That's it you are a GO pro now. Now use your Negev against LDLC.