You can buy a rifle only if you passed the first round as WIN. But in Terrorist you can also buy a kevlar if so. (without buying anything on first round because that only makes you look like a noob and a loser)
I advise you to quit playing your childish Role Play and RPG servers and start playing some serious servers (PCS dust, PCS dust2, PCS aim)
Glock - medium damage (2 shots in the head is enough, with helmet 3) - better burst-mode (better chances for headshots) = For noobs the perfect pistol.
USP - strong damage ([mostly] 1 shot - headshot - 2 shots with helmet) - silencer = Good for the first round with 800$.
Glock: Cheap
More ammo
Special Mode: Burst mode
Accuracy: Bad
Description: It is M3 and XM1014's little brother
USP: Cheap
Less ammo
Special mode: Silencer
Accuracy: Good
Description: It's an Assassin weapon, silent, but powerful. It's also M4A1's little brother.
I don't vote because I agree with both.
My question: Why does everybody plays cs:1.6? It's too old! You guys should play CS:CZ or CS:S