We have MKB35/3 in BR2 and new MKB42H(15) in BR3. Everyone, take a closer look at the data of these three guns, It is obvious that STG45 is only have 15 rounds better than MKB42H but also have 50 ROF lower than MKB42H. Then it only have 50 ROF and 10 rounds more than MKB35/3. But STG45 result BR is BR4.In addition, it should be considered that the default attribute point upper limit of the soldiers in the STG45 squad is not good like the soldiers we selected ourselves.
We all know that this may involve some legacy issues in the development of the game, such as weak vehicles and guns are being assigned to higher BRs in the early stages of merge. Of course, most of them gradually came to their current position in the BR changes over the past year. Now that MKB42H (15) is about to be released, STG45 (M) should also have corresponding adjustments to a suitable position. Not to mention, almost no one would choose this squad in the BR4 gaming experience when it’s not as good as silencing STG44 squad or kiraly43m squad.
Two that need to be dropped as the Horn is not much better the StG 45. Neither are even close to being decent weapons in BR5, and to be honest the ONLY way I can use these squads is by changing them to use backup weapons, which sucks as I am limited to lower ammo in the decent weapon. Personally, I don’t think either would be that great in a BR4 game even if the Dev’s came to their senses and isolated BR5 and they were both BR4.
IMOP if the Dev’s did the right thing and UNLOCKED premium and event squads which WE PAY FOR, then we could use any weapons we wanted and the shit Horn and StG 45 could just rot away in the gun locker. 
Currently I use the Conders MG in one and StG 44’s in the other, but limited to ammo,
Cönders is one of the best smg’s, i like it! But just have it 3 of’em, hope they bring it back for gold i dont care about the price just they should place it in shope again.
And for compensation in discount whould be just great! Cuz of that “server problem”
Fortunately I have four, so I can supply a squad. I normally don’t use assaulter squads in BR5, however I have a couple premium squads that have locked weapons, so I can’t use them anywhere else, so I gave one the Conders MG and the other the StG 44. However it would be nice if they unlocked the squads we paid for so I could go back to having ammo bags and be able to carry 300 rounds with my Conders.
