How to install: Resident Evil 4 Special RPG
1. Start OpenIV 
2. Go to Grand Theft Auto V / update / x64 / dlcpacks / patchday3ng / dlc.rpf / x64 / models / cdimages / weapons.rpf 
3. Replace w_lr_rpg.ytd, w_lr_rpg+hi.ytd, w_lr_rpg_rocket.ytd and w_lr_rpg_rocket+hi.ytd

How to install: Damage and Effects
1. Start OpenIV 
2. Go to Grand Theft Auto V / update / update.rpf / common / data / effects 
3. Replace explosionfx.dat
4. Enjoy