Changes

:'''Tile Bonus'''40's tile buff and shape are also considered unique amongst SMGs, she provides 500% critical rate increase for other SMG units in the tile 8, 9, 2 and 3.

*Her inability to buff AR units on her tile also dissuades her usage as a main tank, since being unable to provide buffs to AR dolls can be considered a major weakness in ARSMG AR/SMG formations, the vital position of tile 5 are usually occupied by dolls such as {{doll name|G36C|SMG|5}} or C-MS with their powerful tiles that effects all three AR dolls on the back line.

{{TileGrid||1|1||1|0||1|1|}} RO635's large coverage tile, with this she sits comfortably in the central position 5 of any (or most) AR/SMG formations.{{TileGrid||1|||1|0||1||}} The typical 7, 4, 1 coverage tilefound on many SMG dolls. :'''Compatibility'''As mentioned above, this bonus is applied to other SMGs, together with the pros and cons of such bonus. Unable to boost AR dolls limits UMP40's usage in many situation, it is up to players to experiment and test suitable formations for UMP40.

| Holographic optic provides both damage and accuracy, the two stats that are vital for a DPS type SMG. The rate of fire penalty is rather negligible on a SMG doll, since most SMG dolls by default have above 85 innate rate of fireand the fact that many AR dolls are able to provide rate of fire bonus on their tiles. With this optic installed, UMP40's damage output will increase significantly.