strange scripts?

Excusez-moi but what are those cfg lines good for?? More bullet damage? bigger magazine?
not sure if i'm a newfag or ppl just trolling.

[code]
//MP40 Unlock -- Text
seta u11t "^7Weapon unlock ^3Big Bore ^7selected^v!"
seta u12t "^7Weapon unlock ^3Drum Magazine ^7selected^v!"
seta u13t "^7Weapon unlock ^3Suppressor ^7selected^v!"

//Unlock -- Vstrs
seta u1 "vstr u11"
seta u11 "testUnlock upgrade_mp40_more_bullet_damage 1; seta u1 'vstr u12'; addChatLine $u11t"
seta u12 "testUnlock upgrade_mp40_bigger_magazine 1; seta u1 'vstr u13'; addChatLine $u12t"
seta u13 "testUnlock upgrade_mp40_muzzle_break 1; seta u1 'vstr u11'; addChatLine $u13t"
[/code]

[code]
//Medic Unlock -- Text
seta u31t "^7Veil unlock ^3Efficient Aura ^7selected^v!"
seta u32t "^7Veil unlock ^3Self Heal ^7selected^v!"
seta u33t "^7Veil unlock ^3Improved Healing ^7selected^v!"

//Unlock -- Vstrs
seta u3 "vstr u31"
seta u31 "testUnlock upgrade_healingaura_cheaper 1; seta u3 'vstr u32'; addChatLine $u31t"
seta u32 "testUnlock upgrade_healingaura_heal_player 1; seta u3 'vstr u33'; addChatLine $u32t"
seta u33 "testUnlock upgrade_healingaura_more_healing 1; seta u3 'vstr u31'; addChatLine $u33t"
[/code]

more here: http://forum.gamingpalace.de/download/file.php?id=515