帝皇之鐮被指定為第874支星際戰(zhàn)士戰(zhàn)團，據(jù)推測他們的基因庫來自于極限戰(zhàn)士或帝國之拳。他們的第一任戰(zhàn)團長是托奇拉(Thorcyra)——一位富有戰(zhàn)略頭腦的領(lǐng)袖，他一直領(lǐng)導戰(zhàn)團數(shù)世紀之久，直到他在帶領(lǐng)戰(zhàn)團脫離克拉肯蟲巢艦隊的魔爪時犧牲。

　　帝皇之鐮在對母星附近銀河東緣(注8)的警戒行動中逐漸壯大，當掃蕩了周邊礦業(yè)聚居區(qū)附近的海盜之后，戰(zhàn)團又在次級星區(qū)對獸人的遷徙進行打擊。他們參加過“達摩克利斯灣遠征”(注9)，并且在帝國占領(lǐng)Sy'l'kell的行動中扮演了重要的角色;但是，在得知蟲族正在對烏爾特拉馬星系(Ultramar)——極限戰(zhàn)士的家園前進之時，遠征就終止了。

　　在巴達布之戰(zhàn)之后，慟哭者戰(zhàn)團由于在戰(zhàn)爭中曾經(jīng)倒向叛徒一方而開始了一場贖罪性質(zhì)的百年遠征，帝皇之鐮負責監(jiān)視這支悔過戰(zhàn)團身上任何可能出現(xiàn)的反叛征兆。長時間的監(jiān)督使得這兩支戰(zhàn)團成為了盟友，他們一直在履行自己的職責，直到41千年的最后幾年——直到帝皇之鐮的母星索薩被毀滅。起初，人們認為帝皇之鐮和他們的母星一道被摧毀了，但是一小部分戰(zhàn)士仍然在打擊克拉肯蟲巢的子艦隊和其它蟲族力量的戰(zhàn)場上活躍著。

　　索薩最后的日子

　　第41紀，992年，克拉肯蟲巢艦隊正像癌癥般四處蔓延，它們已經(jīng)淹沒了帝國最初的所有抵抗，消滅了慟哭者戰(zhàn)團，帝皇之鐮在試圖沖擊第一波蟲族艦隊的時候也遭遇了重大損失。艦隊遭受慘痛損失的帝皇之鐮們隨即撤退到了母星索薩之上，后者隨即就遭到了蟲族的圍攻，成千上萬的泰倫生物降落到了星球上，帝皇之鐮在戰(zhàn)團長托奇拉的帶領(lǐng)下，為了給居民的疏散爭取時間，守衛(wèi)在一座名為“巨人之棺”的巖石山峰上。(注10)

　　異形們數(shù)不清的艦船來勢洶洶，力量差距的懸殊使得帝皇之鐮看起來無足輕重。盡管如此，他們?nèi)匀辉谶@一蟲族占領(lǐng)整個索薩最后的障礙上堅守了數(shù)個星期。到最后，彈盡糧絕的帝皇之鐮們不得不去吃死去異形的尸體來繼續(xù)維持戰(zhàn)斗。在毫無希望的形勢下，泰倫蟲族最終消滅了帝皇之鐮，托奇拉戰(zhàn)團長安排所有剩下的戰(zhàn)士撤退以避免整個戰(zhàn)團的全軍覆沒，他在最后時刻鄭重地把戰(zhàn)團的象征——皇帝的鐮刀交到了唯一幸存的連長——第三連的特拉西烏斯手上，讓他和其它人乘坐雷鷹炮艇撤離這個劫數(shù)難逃的星球，自己則帶領(lǐng)第一連的殘部堅守陣地，作為最后一道防線。

　　幾近被毀的領(lǐng)導權(quán)傳遞到了特拉西烏斯的手中，隆重莊嚴的儀式在榮譽之威號(Honour's Might)上舉行。特拉西烏斯將其重新命名為索薩之心號，以緬懷逝去的家園與犧牲的戰(zhàn)友。

　　比黑摩斯蟲巢艦隊

　　帝皇之鐮在第一次蟲族戰(zhàn)爭中的戲份不多，他們的主要力量放在對抗鈦星人的達摩克利斯遠征上。不過同時他們也在加強母星的防御以應(yīng)對可能到來的蟲族入侵

　　下面還有兩段，一段是達摩克利斯遠征，資料集V1上有比之詳細多的介紹，我就不翻了，另一端也是講克拉肯蟲巢艦隊的，不過與前文有嚴重的沖突，為了故事的完整性我也不翻了，有空的兄弟自己看一下吧

　　The Arrival of Hive Fleet Kraken

　　Over 300 years since Hivefleet Behemoth, the Imperial Tarot began to tell of disaster 10 years before the arrival of Hive Fleet Kraken. Images of war haunted the Thorcyra and the astopaths. An uprising on the Factory World of Graia led to the deployment of the 3rd, 9th, and elements of the 10th companies to restore the Imperium's hold on the system. But during the Scythes invasion it became apparent that the uprising was caused by a Genestealer cult. After several months of combat and heavy casualties, the cult was finally crushed.

　　While returning home the Scythes forces from Graia encountered increasing disturbances in the warp. The Navigators suggested the Miral System to rest and wait out the warp storms. Here they encountered the remnants of their own Chapter, and learned of the overrunning of Sotha & the destruction of the Lamenters Chapter (The Lamenters made their last stand against the Tyranids at the Devlan System Sentinel Stations) by what the Imperium had now named 'Hive Fleet Kraken'.

　　Stories of desperate boarding actions against the Hiveships and their awakening occupants, close quarter combats and waves of attackers left dread in the hearts of the Scythes. With the Lamenters and their homeworld of Sotha gone, the Scythes found themselves cornered on the Deathworld of Miral. After planet fall the Scythes organised the Miral PDF to defend against what seemed to be an imminent assault.

　　Within a week the Tyranid were upon them. After countless, desperate, boarding actions and pitched land battles the Imperial forces chose a large rock mesa fortification known as the 'Giant's Coffin' from which to make a protracted last stand. After several weeks of fighting the Imperial forces attempted a breakout to leave the planet utilising a recently discovered Imperator Titan found inside the many labrynthine chambers of the mesa fortress.

　　In the counter-attack that led the withdrawal, barely a hundred Imperials escaped Miral. This was only achieved when the Titan inducted a core breach to eradicate a majority of their planet based pursuers. The survivors then fled back to Graia, losing several ships enroute to harrying vanguards of the Hivefleet. Once they made Graia, they set about organising the Graian defenders for the invasion that was surely to come.