Unlike the PC version, The PS2 version of Rainbow Six 3 has a more limited choice of weapons, and each weapons usually come with attachments.
Primary[]
MAC-11/9[]
The primary variant of the MAC-11/9 has its stock unfolded, is equipped with an extended magazine, which increases its ammo capacity to 32+1, and suppressor unlike the secondary weapon. The MAC-11/9 apparently exists and it was manufactured by RPB Industries; it's not the same as the M11/9, a semi-auto copy of the MAC-10 manufactured by Cobray.
It is the fastest of all the submachine guns, so fast that even if you tap the R1 button lightly, it tends to fire two or more rounds instead of just one.
Despite its unfolded stock, it has the exact same accuracy as the secondary one.
MAC-11/9 description in the loading screen
The player holds the MAC-11/9
Loadout icon and stats
MP5A4[]
The MP5A4 is equipped with an ACOG sight. It can also be seen in the weapon selection screen's background.
MP5A4 in the weapon selection screen
SR-2 "Veresk"[]
The SR-2 is equipped with the C-More sight. Its loading screen picture is strangely the same one as the secondary variant, with shorter magazine and folded stock, unlike the MAC-10, which uses a different pictures for each variants.
The player holds the SR-2
Loadout icon and stats
G36C[]
Secondary[]
MAC-11/9[]
The secondary variant of the MAC-11/9 has its stock folded, has a shorter magazine that holds only 16+1 rounds, and lacks a suppressor. Oddly enough, it seems to still use the stats for the suppressed one when compared to the PC version.
The loading screen picture for the secondary variant appears to be more detailed than the primary one, notably the textures.
The player holds the MAC-11/9
SR-2 "Veresk"[]
The secondary variant of the SR-2 has its stock folded, fire mode set to semi-auto, and is equipped with a less-detailed version of what appeared to be the C-More sight with orange tint as opposed to the regular bluish one. However, the sight picture looks exactly the same as the regular one. The menu icon and loading screen picture shows that it uses a shorter magazine than the primary one, but in-game it still has the same 20+1 ammo capacity.
Another strange thing about this weapon is that it doesn't emit muzzle flash when shot, as if the weapon was suppressed.
Misc[]
Sight pictures[]
There are a few different sight pictures in the game.