Hi, in answer to your first question yes it should be possible by the editing the weapons attribute page. You'll want to change the duration in the setup tab and then change the settings in tracking/ normal tabs to a HMG to create a firing cone.
If you want to see the firing cone in game then make sure ui_setfacing is set to weapon default.
To answer your second question I need more information on what's not showing and what you tried to do to fix it.
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#Steam AliasWL%Streak
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