Hey, 

I'm very familiar with replacing models for GTA4 but since I'm using a clan pack which is all finely tuned i don't want to use GTA4 for testing models and skins. So i've been wanting to use EFLC The lost and damned however every time i change the model of the police officer it does not change ingame! I've tried to use SparkIV and OpenIV to change the models and they successfully change within the programs but when i load the games they're still the same old original cops! I don't know what to do!

With SparkIV, are you clicking save before you exit out? The models also might need to have the peds.ide and pedvariations modified in order to spawn correctly in-game. 

I'm not sure if it works for TLAD.

 

But for TBoGT.. There is a different police model. Like how you would normally go into SparkIV and go to componentpeds etc it's a bit different for EFLC. if you change the cop ped for IV, it doesn't change the peds for EFLC. you have to go into the EFLC section of SparkIV, go to componentpeds and switch the police model

 

So instead of opening up SparkIV and going to componentpeds, you have to find the EFLC section (which comes just before or right after the GTA4 section)

I have this same issues with TBoGT. You also need to update the ped file under TLaD, there are two separate places that have the m_y_cop ped file.

Thanks for the help guys!