Simple installation, but since the sound is adapted from Micro Uzi of IV...

with SparkIV, export your WEAPONS.ivaud from resident.rpf (find it in
pc\audio\Sfx). Open the WEAPONS.ivaud with GTA IV-aud and import:

UZI_SHOT1_L
UZI_SHOT1_R

from folder GTA IV.
Save once done and import back to resident.rpf, Save and close.

Now install this weapon line as usual to Episodic_13.

	<!-- SOLID GOLD UZI -->
	<weapon type="EPISODIC_13">
		<data slot="SMG" firetype="INSTANT_HIT" damagetype="BULLET" group="SMG" targetrange="25.0" weaponrange="380.0" clipsize="32" ammomax="240" timebetweenshots="66">
			<damage base="30" networkplayermod="2.0" networkpedmod="1.0"/>
			<physics force="30.0"/>
			<reload time="2266" fasttime="2266" crouchtime="2000"/>

			<aiming accuracy="0.75">
				<offset 				x="0.2" y="1.0" z="0.6"/>
				<crouchedoffset x="0.3"  y="1.0" z="0.09"/>
				<reticule standing="0.75" ducked="0.6" scale="0.3"/>
			</aiming>

			<pickup regentime="240000" ammoonstreet="64"/>

			<controller>
				<rumble duration="100" intensity="0.04"/>
			</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_e2_uzi">
			<anim group="gun@GOLD_UZI" meleegroup1="firearm_core"/>

			<effects>
				<muzzle fx="muz_smg"/>
				<shell fx="weap_ejected_smg"/>
			</effects>
		</assets>
	</weapon>