As I said, Japanese scripts in Bootcamp Campaign/Some of VR Training/Karts and few more (language_f_bootcamp, languagemissions_f_bootcamp, language_f_kart and languagemissions_f_kart), are totally silly, unreadable, just bad.
Here are some of it in languagemissions - just few of Bootcamp campaign things.

• General
  • Use "％" (em-sized) but not "%" so format cannot show texts correctly.
  • Different translation for Names both of person and city
    • In EPA(STR_A3_CfgIdentities_MacKinnon) "マキノン", in Bootcamp "マッキノン"
    • In EPA(STR_A3_CfgIdentities_Akhanteros) "アカンテロス", in Bootcamp "アクハンテロス"
    • In map(str_a3_kavala0) "カヴァラ", in Bootcamp "カバラ"
    • In map(str_a3_syrta0) "サイトラ", in Bootcamp "シルタ" or "シルテ" especially this makes confusion.
  • Silly translations for some words
    • "How copy?" translated as "どうやって？" which means "How should I (do it)?" should be "了解か？" or "いいか？" - the second one is featured in EPA.
    • "American" translated as "アメリカン" or "アメリカん", especially the second one it totally silly, should be "アメリカ人"
    • Completely mistranslations for "Over." and "Out." - they translate "Over." as "以上。" which means "Out.", "Out." as "行け。"(Go.) or "出ろ。"(Get out.)
      • "Over." is translated as "どうぞ。", "Out." is translated as "以上。" in EPA.
    • "Greenbacks" translated as "グリーンバック" or "グリーンバックス" - and as I said in str_a3_boot_m05_45_aftermath_lac_7 translated as "ドル紙幣"(dollar bill) omfg
      • This is translated as "グリーンバックス" in EPA.
    • This is small thingy... but "1-2 Actual" => "1-2アクチュアル" hmm this is not bad but also not so cool.
      • In Apex, "Northstar Actual" => "ノーススター・アクチュアル"
  • Not unified translate for leader - "..." or "…" especially str_a3_boot_m01_05_turn_on_ada_0
    • "…" is used in EPA.
  • Some of sctipts overlapped period (。。) - e.g. str_a3_boot_m02_70_hold_breath_ada_0, str_a3_boot_m04_bis_roe_desc
• Mistranslations of single scripts
  • str_a3_boot_m04_03_checkpoint_ada_1
    • "It's coming up on 20 minutes since their convoy was supposed to pass through there." => "部隊がここを通過してから恐らく20分経っている。"(The convoy passed here probably 20 minutes ago.)
      • This is totally mistranslation, pretty polar!
  • str_a3_boot_m02_d01_hello_world_ada_1
    • (Yeah, )"Right?" => "右？"(Direction of right)
  • str_a3_boot_m05_briefing_execution_text
    • "1. Await <marker name = 'BIS_reinf'>the reinforcements</marker>.<br/>2. Report in with Broadway." => "1:待て<marker name = 'BIS_reinf'>援軍</marker>。<br/>2。ブロードウェイに報告しろ。" as you can see "Await" and "the reinforcements" translated each parts.
      • Its not so serious thing but "1." and "2." are "1:" and "2。"
  • str_a3_boot_m05_d01_hate_ada_0
    • "Hearts and minds, Sergeant. Hearts and minds..." => "心です、軍曹。心か..."(It's a mind, Sergeant. A mind or...)
      • I don't know how to translate it - but this is not for it. Should translate as "Calm down-" or some appease words?
  • str_a3_boot_m05_05_situation_ada_0
    • "Multiple KIA. AAF and FIA. The survivor didn't make it." => "複数KIA。AAFとFIA。生存者はそれをしなかった。"(The survivor didn't do it.) "The survivor didn't make it" means "He's gone(dead).", so this is not the translation for it.
  • str_a3_boot_m04_bis_secure_desc
    • "Secure %1the convoy's position%2 in preparation for incoming friendly reinforcements." => "優しい援軍に備えて%1部隊の位置%2を確保しろ。" 優しい means friendly, kindly
  • str_a3_boot_m04_x05_wounded_player_lac_0
    • "We've got wounded over here!" => "我々は負傷している！"(We are wounded!)
  • str_a3_boot_m04_70_move_up_ada_0
    • "Move up! Stick to cover! Watch the trees!" => "上に移動！カバーから目を離すな！木を見ろ！" "上に移動" means "Go (vertical) up", "カバーから目を離すな" means "keep an eye to cover".
  • str_a3_boot_m03_115_right_1_ada_0
    • "Take the right coming up." => "来る権利を取る。" "権利" means right, claim, title
  • str_a3_boot_m02_bis_assemble_desc
    • "Run to %1the target%2 and assemble it." => "％の1theターゲット％2に実行し、それを組み立てる。" ... I just can't believe it
  • str_a3_boot_m02_briefing_situation_text
    • "Peacekeeping efforts continue in The Republic of Altis and Stratis following the Civil War. <omit> " => "平和維持の努力は南北戦争以降 <omit>" "南北戦争" means "American Civil War (1861-1865)"
  • str_a3_boot_m04_01_start_bhq_6
    • "There's your ride." => "お前の車だ。" "車" is "a car", not a MH-9 or a helicopter.
  • Some of texts are inconsistent styles - there are few examples
    • str_a3_boot_m03_x50_closed_map_2_ada_0
      • "Conway, stop messing around. Show us your map." => "コンウェイ、ふざけるな。地図を見せてください。" "-ください。" means "- please?" this is not the style for angry
    • str_a3_zone_restriction_warn_has_leader_ada_0
      • "Sergeant, where are you going?" => "軍曹、どこへ行くのですか？" "-ですか？" is polite style for question
    • str_a3_boot_m02_x25_long_3_reprimand_ada_0
      • "Sergeant, seriously, it's just in front of you. By the fence." => "軍曹、本当に、目の前ですよ。フェンスのそばに。" "-ですよ" is polite style for point

For honor of translator (maybe not exist but), here is a nice and the coolest translation in langagemissions.

• str_a3_boot_m05_45_aftermath_lac_5
  • "The hell it is! Corporal, arrest them." => "あるに決まってんだろ！伍長、あいつらを逮捕しろ。"(Of course it is! Corporal, arrest them.)
    • Maybe use "拘束"(usually used by government, law, or military) instead of "逮捕"(used by police) to more cool.

I spent all my energy to create this - but wait, there's more! Shit, I am tired and can't do it anymore... - Maybe they are all translated by Google or other machine translation service - these are just few of them.
I quote Adams' script to end this feedback.

but this guy? This guy's a special kind of fuckwit.