|Full name||Maschinengewehr 4 / HK123|
|Country of Origin||Germany|
|Manufacturer||Heckler & Koch|
|Voice actor||Yoshimura Haruka|
MG4 is an obtainable Tactical Doll in the game.
MG4 is the current 5.56 firing LMG in service with Bundeswehr, official product/project name from the designing company H&K would be HK123. Developed in the late 1990s and was first seen publicly in 2001, officially entered service as infantry squad level support weapon and vehicle top mount/coaxial MG in 2005. Aside from the service with Bundeswehr, MG4 is also exported to countries such as Turkey and Portugal, special forces such as the Estonian ESTOSF and the Malaysian PASKAL also purchased and adopted MG4 variants into service, MG4 will also be replacing the CETME Ameli from the Spanish army service. Other than the main production variant, MG4 also have an export variant MG4E, a shorter barrel MG4K (Kurz) and the exporting short barrel model MG4KE.
The MG4 is an air-cooled, belt-fed gas-operated rotating bolt action light machine gun, design to chamber the 5.56x45mm NATO cartridge. MG4 is able to achieve a cyclic rate of fire of 890 rounds per minute, the shorter barrel and export models have the fire rate reduced. MG4 measures 1050mm with the adjustable stock fully extended, the barrel is 480mm in length, with the 920m/s muzzle velocity, MG4 is able to cover up to 1000m of effective firing range. Shorter barrel variants only have a 402mm long barrel instead, which resulted in a lower muzzle velocity and shorter effective range.
The disintegrating munition belt of MG4 feeds the weapon from the left side of the receiver via an enhanced pawl mechanism, spent belt are ejected directly right while the empty shell is ejected downwards after exiting the right side ejection port. Munition belt can be chained to any length needed, MG4 operators will have access to large capacity ammo pouches/backpacks or specially designed drum magazines that attaches on the left side of the receiver. MG4 has a hammer-forged quick-change barrel that can be safely exchanged when hot without the need for protective gloves.
Picatinny rail placement can be found on top of the receiver, user can mount compatible optics should it be issued, MG4 have default iron sights available when optics are not. German Army servicing models have a telescopic sights with 3x magnification that also functions as a carrying handle. Additional rail placements can be found on the side of the barrel above the integrated bipod, for mounting other combat accessories. Other small detail feature including the weapon's cleaning kit being able to fit inside the adjustable stock and a build in tripod lug for tripod mounted firing.
MG4 is rather short and petite for a MG carrying T-doll, using the weapon as reference and assuming it is drawn to size, MG4 measures no more than 130cm in body height, making her one of the shortest character in the game.
Long silver hair tightened in two lose ponies, MG4 can be identified by her golden coloured iris and the V-shaped hair clip.
The artist neco commented on MG4's design on the official art book of Girls Frontline: "MG4's design are inspired by the Bundeswehr uniforms, also wanting to deliver a cute loli type character that doesn't quite fit a weapon's description, out it comes MG4. (MG4的设计思路是由制造国的德国军服转换而来的，同时还想要表现出与枪相反的萝莉的反差萌，于是就有了现在的MG4。)"
The T-doll sprite is using a Bundeswehr issue MG4 as evident from the telescopic sights carrying handle, but both the default art and Survival Club costume does not have that attachment and the Picatinny rail is exposed.
Rarely speaks, doesn't show interest in objects around her, reliable when it comes to combat, can be considered a mysterious T-doll. But secretly cares about her image in the eye of the others.
The 7.62x51mm NATO cartridge firing MG derived from MG4 would be the MG MG5, in theory this would mark the two's relationship as sisters, but however nothing of this sort was mentioned in the game, MG5 merely suggests their relationship as colleagues in the story line.
MG4 have a Lock and Load skill, which is a stepped up version of MG HK23's and MG MG3's, increasing firepower and providing additional ammo chain after activation, but the long initial cool down usually means she can only activate it on the second salvo. She is also as one of the MG T-dolls who can provide additional armor buffs to SG dolls with her tile grid, such as MG5 and MG Ameli.
MG4 was briefly mentioned but made no visual appearance during chapter 1 night missions.
Special Delivery to Sector S09
SMG MP5 was tasked with resupply and Intel collection mission into the newly regained Sector S09, one of the intended informants was MG4. However as MG5 described, MG4 was part of a more important operation, her tasks were given to Taskforce 404's AR HK416 and AR G11 as part of a contract with 404. As a result the rum flavour ice cream AR G36 prepared for MG4 never actually reached her tummy.
|Acquisition||MG4，从今日起为您效劳（叹气）希望这里还有我的位子吧······||ヘッケラー&コッホMG4、今日から精一杯尽力します。は…私の席があると良いですけど。||H&K MG4, will be serving you from today on. *sigh* hope I can fit in here...|
|Introduction||最初版本中，我的名字是MG43，在争夺国外订单时惜败给FN的Minimi，但却被本国军方采纳，并改名为MG4。基本上，对我的研发起源自G11无法适应市场而导致公司策略的转变。针对市场上各类优秀武器的分析，最终促成了我的诞生。||The original version was named MG43, but was defeated by FN's Minimi when contesting for international contracts, then however was procured by Bundeswehr and renamed to MG4. Basically G11's downfall forced the company to make change in weapons design approach, after intense studying of different kinds of spectacular existing weapons, I was then designed.|
|Secretary||我？······不用在意我，给我命令就够了。||私？気にしないでください、命令をくださればいいです。||Me? ...Don't mind me, just give me my orders.|
|又想开小差吗？······悉听尊便吧。不过，别想拖我下水。||またサボるんですか？好きにしてください。ただ、道連れはしないでくださいね。||Slacking off again? ...as you wish. As long as I don't get punished too.|
|呜······那个······请适可而止，还有正事要做不是吗？||ん、あの、いい加減にしてください。まだ、やるべきの事があるでしょう？||Ermm... that... please stop that, don't you have better things to do?|
|Secretary (post OATH)||
Commander, mind if I sit here? This way I can be a bit closer. It doesn't matter, nobody is around right now...
Commander, why are you up so late? Eh? Wait... really, you just want to see me embarrassed! Never again! There won't be a next time, I promise!
|Greeting||啊…原来已经来了吗？欢迎欢迎。||あ、もう来たのですか？歓迎します。||Ahh... You're here already, welcome.|
|T-Doll Produced||会有认识的人在吗？||知り合いは、居るのでしょうか？||Anyone I know?|
|Joining an echelon||战斗准备？没问题的。||戦闘準備？問題無いですよ。||Combat preparation? Always.|
|Enhancement||啊…看来我还是能继续帮到你的呢。||あ、まだまだ、お役に立てるようですね。||Ahh... Looks like I can still be of help to you.|
|Dummy-linking||能力越大，责任越大。||力が大きはど、責任が大きです。||With power comes responsibilities.|
|Logistics (start)||我了解了，开始行动。||分かりました。行動開始。||I Understand, begin operation|
|Logistics (end)||行动结束，这是报告请审阅。||行動完了。どうぞ、検閲を。||Operation finished, here is the report.|
|Autobattle||必须给大家留下一个好印象……||皆に、いい印象を残せないと。||Must leave a good impression on everybody...|
|Starting a combat mission||准备完成，全员出发。||準備完了、全員出発。||Ready, everyone move out.|
|Starting a battle||让战斗开始吧。||戦闘を、始めましょう。||Initiate combat.|
|Skill activation||请倒下吧。||倒れなさい。||Please fall.|
|我还有不得不完成的使命…||やらなきゃいけない使命が。||I have my duties.|
|Heavily damaged||讨厌…居然在这个时候……||ヤダ、こんな時に。||Damn it, why now...|
|Retreat||十分抱歉……下一次，我会加油的。||ごめんなさい、次は、頑張ります。||Very sorry... I will try harder next time.|
|MVP||诶？这就赢了吗？其实我也没怎么努力过的。||へ、勝ちました？別に、努力なんかしていません。||Eh? Already? Wasn't actually trying.|
|Restoration||给大家的印象，又要变差了吗……||皆からの印象、また、悪くなったのでしょうか？||Have I left a bad impression on everybody...?|
|New Year's Day||
- The planned service designation for the weapon was MG43, but it was changed to MG4.