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Serious Secondaries Weapons

This mod is a cross between "Alt-fire weapon mod": http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=820900678
and "Artificial's Weapon Enhancements 3.0" mod: http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=778757942

It contains all features of Alt-fire weapon mod, but weapon stats are changed like in Artificial's mod, making weapons more balanced and usable in more situations.
Power of Alternative fire features was adjusted accordingly to Artificial's changes in weapons.

More detailed information you can find on corresponding mod pages. Here I will point out several important details:

• You should disable all other weapon modifications if you want to use this one. You don't need (and shouldn't have) either one of aforementioned mods, this one is independent of them;
  
• This mod, like Alt-fire one, is strictly for Singleplayer, it won't work in Co-op;
  
• This mod, again, like Alt-fire mod, causes huge savegame lags. To avoid this (by avoiding saves) you can play in Co-op (alone) instead of singleplayer;
  
• You have to assign "Alternative fire modes switch" key yourself in game controls options;

That's pretty much it.
Have fun, report bugs and your balance thoughts in the comments.

Credits:
Artificial - Artificial's Weapon Enhancements, custom weapon textures, cross idea;
NSKuber - Alt-fire weapon mod, putting the two mods together.