The sights are not lined up. To fix this, edit weapon_combatshotgun.meta in
mods\update\x64\dlcpacks\mpheist4\dlc.rpf\common\data\ai

Search "FirstPersonScopeOffset"
and replace the 4 rows with these
<FirstPersonScopeOffset x="0.000000" y="0.045000" z="0.020000" />
<FirstPersonScopeAttachmentOffset x="0.000000" y="0.000000" z="-0.002500" />
<FirstPersonScopeRotationOffset x="-0.750000" y="0.000000" z="0.000000" />
<FirstPersonScopeAttachmentRotationOffset x="0.000000" y="0.000000" z="0.000000" />
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To enable the scopes and sights edit weapon_combatshotgun.meta, search "Components"
Under <AttachPoints>, insert this in
            <Item>
              <AttachBone>WAPScop</AttachBone>
              <Components>
                <Item>
                  <Name>COMPONENT_AT_SIGHTS</Name>
                  <Default value="false" />
                </Item>
                <Item>
                  <Name>COMPONENT_AT_SCOPE_MACRO_MK2</Name>
                  <Default value="false" />
                </Item>
                <Item>
                  <Name>COMPONENT_AT_SCOPE_MEDIUM_MK2</Name>
                  <Default value="false" />
                </Item>
                <Item>
                  <Name>COMPONENT_AT_SCOPE_SMALL_MK2</Name>
                  <Default value="false" />
                </Item>
              </Components>
            </Item>
============================================================================================
To spawn the scope, types these in simple trainer's "spawn weapon attachment by model name"
(You can use other trainers too if they also have this function)
	COMPONENT_AT_SIGHTS (Holo sights)
	COMPONENT_AT_SCOPE_MACRO_MK2 (Macro scope)
	COMPONENT_AT_SCOPE_MEDIUM_MK2 (Regular red-dot scope)
	COMPONENT_AT_SCOPE_SMALL_MK2 (Regular green-dot scope)
Only the sights' reticle is lined up, the 3 scopes aren't