[VERIZON] BL Unlock & Firmware question

Hi, can i unlock the bootloader by the motorola's page with the verizon locked phone? or do i need a unsigned model to get the BL unlocked?
Can i put a global unsigned firmware to my Verizon MOTO E 2015 or can i only put my verizon's firmware on it?

Can i still use network on a global debloated firmware?

Thanks afterwards!