一心不乱[isshinfuran] wholeheartedly
淫乱[inran] debauched
潰乱[kairan] corruption (of order, customs, etc.)
快刀乱麻[kaitouranma] solving a problem swiftly and skillfully
怪力乱神[kairyokuranshin] supernatural things

外乱[gairan] noise (interference)
狂乱[kyouran] fury
胡乱[uron] suspicious looking
混乱[konran] disorder
咲乱れる[sakimidareru] to bloom in profusion

ロケット発射筒[rokettohasshatou] rocket launcher
依託射撃[itakushageki] firing from elbow rests
威嚇射撃[ikakushageki] warning shot
一斉射撃[isseishageki] volley firing
火焔放射器[kaenhoushaki] flamethrower

間接照準射撃[kansetsushoujunshageki] indirect fire
騎射[kisha] shooting on horseback
逆噴射[gyakufunsha] reverse thrust
曲射[kyokusha] high-angle fire
曲射砲[kyokushahou] howitzer