Copy here & paste in your WeaponInfo.XML (RLAUNCHER)
******************************************************

<weapon type="RLAUNCHER">
		<data slot="HEAVY" firetype="PROJECTILE" damagetype="EXPLOSIVE" group="ROCKET" targetrange="50.0" weaponrange="100.0" clipsize="5" ammomax="9999" timebetweenshots="800">
			<damage networkplayermod="2.0" networkpedmod="1.0"/>
			<reload time="2066" fasttime="2066" crouchtime="2066"/>

			<aiming accuracy="1.0">
				<offset x="0.15" y="1.0" z="0.53"/>
				<crouchedoffset x="0.12" y="1.0" z="0.05"/>
				<reticule standing="1.0" ducked="1.0" scale="0.0"/>
			</aiming>

			<pickup regentime="600000" ammoonstreet="4"/>

			<controller>
				<rumble duration="200" intensity="0.4"/>
			</controller>

			<flags>
				<flag>GUN</flag>
				<flag>HEAVY</flag>
				<flag>2HANDED</flag>
				<flag>ANIM_RELOAD</flag>
				<flag>CAN_FREE_AIM</flag>
				<flag>ANIM_CROUCH_FIRE</flag>
				<flag>KEEP_CAMERA_BEHIND</flag>
			</flags>

			<projectile>
				<typetocreate type="ROCKET"/>
				<offset x="0.54" y="0.0" z="0.055"/>
				<rotoffset x="0.0" y="0.0" z="-1.571"/>
			</projectile>
		</data>

		<assets model="rpg">
			<anim group="gun@rocket"/>
			<effects>
				<muzzle fx="muz_rocket"/>
			</effects>
		</assets>
	</weapon>