The TMP is a fairly weak submachine gun only available to the Counter-Terrorists. Most players tend not to use it because of its low damage and wild crosshair. Due to the wild crosshair, it is very inaccurate. For those reasons, the TMP is uncommon, usually being replaced by the MP5 or P90. However, if used with the right player, it can surpass all the other SMGs and some assault rifles.
The TMP is a light weapon. While wielded, the player's movement speed is 250 units per second, meaning they suffer no speed reduction. The TMP is one of the many guns that have the ability to shoot underwater.
This is a good stealth weapon due to the silencer. It may have more use on winding maps such as Office or Nuke than maps such as Dust2.
If cover is available, reloading may be the better option instead of changing weapons due to the quick reload.
Remember, this weapon is very weak. Frontline combat might not be the best option.
It might be wise to pull out your sidearm in opening areas.
Remember to reload often.
This weapon is most effective in close quarters.
When confronting an enemy player at medium range, be sure to crouch and aim low or at the chest while firing. The inaccuracy of the weapon cannot guarantee a headshot and will just waste precious ammunition and time.
At close range, spray full-auto and aim at the head, two hits at head will kill.
If the recoil from this Submachine gun becomes too uncontrollable, be sure to burst-fire this weapon or retreat and wait for a few seconds.
Forget using the TMP for medium and long ranges. It is best to utilize this weapon for ambush purposes when the enemy gets very close to your position.
The silencer attached to the TMP cannot be removed and this is the only weapon with an unremoveable silencer. However, the HUD icons show the TMP without its silencer. This is probably implemented to reduce the size of the icon.
Despite being exclusive to Counter-Terrorists in the multiplayer games, it is commonly used by Terrorists in Deleted Scenes and, in fact, the only time it is usable by the player is the mission Miami Heat.
In Counter-Strike: Source, this is the only weapon to have an idle animation other than the knife.
However, in Counter-Strike 1.0, it has also a idle animation. This was deleted in Counter-Strike 1.6.