BUR #27396 has been approved by @nonamethanks.
remove implication light_machine_gun -> gun
create implication light_machine_gun -> machine_gun
remove implication rpd -> machine_gun
remove implication lewis_gun -> machine_gun
create implication lewis_gun -> light_machine_gun
Fixing the umbrella tag hierarchy.
The rest of models like RPD should only imply LMG instead of machine_gun. The M1918 BAR is still technically an LMG according to the wiki.
Other models are not enough for implication.
See also forum #288574.
Updated