This is some military grade shit right here. You'll be blastin' mothafuckaz like there is no tomorrow with this shit.
Just add this code to your WeaponInfo.xml (GTA4/common/data/) and replace it with the POOLCUE code.
<weapon type="POOLCUE">
<data slot="HEAVY" firetype="INSTANT_HIT" damagetype="BULLET" group="SMG" targetrange="450.0" weaponrange="500.0" clipsize="500" ammomax="2500" timebetweenshots="1">
<damage base="200" networkplayermod="2.0" networkpedmod="1.0"/>
<physics force="1200.0"/>
<reload time="2266" fasttime="2266" crouchtime="2000"/>
<aiming accuracy="1.00">
<offset x="0.15" y="1.0" z="0.55"/>
<crouchedoffset x="0.2" y="1.0" z="0.1"/>
<reticule standing="0.0" ducked="0.0" scale="0.0"/>
</aiming>
<pickup regentime="240000" ammoonstreet="60"/>
<controller>
<rumble duration="100" intensity="0.02"/>
</controller>
<flags>
<flag>GUN</flag>
<flag>CAN_AIM</flag>
<flag>CAN_FREE_AIM</flag>
<flag>ANIM_RELOAD</flag>
<flag>ANIM_CROUCH_FIRE</flag>
</flags>
</data>
<assets model="w_uzi">
<anim group="gun@uzi" meleegroup1="firearm_core">
<rates firerate="100.0" blindfirerate="100.0"/>
</anim>
<effects>
<muzzle fx="muz_smg"/>
<shell fx="weap_ejected_smg"/>
</effects>
</assets>
</weapon>
OR... if your too much of a lazy lil shit, download it here...
MediaFire - Super UziThe reason that I replace the poolcue is because it is the only unused weapon in the game that you could still get via trainer, and I don't know how to script mod very well for this game so I couldn't make a all new weapon and give it to the player. So you will need a trainer to enjoy this mod, just give yourself the poolcue weapon. Also, it dosen't just replace the normal SMG because then everyone with the uzi would have the crazy smg. This way it is only owned by the player, unless a ped somehow gets a poolcue...
I also made a grenade launcher, and rapid fire. I might upload that later too if it's requested...