RGD-33

The RGD-33 Grenade was a Russian anti-personnel grenade used during World War II, and is the main grenade used by the Red Army in the Call of Duty series' campaign.

Call of Duty
The RGD-33 makes its first appearance in the Call of Duty series as the main grenade in Call of Duty's Soviet campaign. It is a solid explosive, good for flushing out enemies taking refuge in a small room. The grenade is found rather infrequently and is normally replaced by the German Stielhandgranate.

Call of Duty Finest Hour
The RGD-33 appears in Call of Duty Finest Hour, as the main grenade in the soviet campaign. It is the same with the Call of Duty ,but is found more commonly. Such as near starting positions and by killed NPCs.

Call of Duty 2
The RGD-33 returns in Call of Duty 2, again as the main grenade in the Soviet campaign. It is generally the same as the Call of Duty version.

Call of Duty: World at War
After the absence from Call of Duty 3, the grenade makes a return in World at War, and is the main grenade used by Soviet troops in the campaign. The player will always spawn with four at the beginning of a Soviet level, however they are never seen in any other game mode besides co-op.