Aluminium Christmas Trees: When Kaname teasingly asks Sousuke if he knows what condoms are for, he responds with a shrug that they're for carrying water. Kaname is confused. However, many survival experts recommend using a condom as a water bag in survival situations: they're very small and lightweight, the rubber is tougher and less sensitive to heat than the plastics used in plastic bags, and a condom easily stretches big enough to hold a quart of water.
Actor Allusion: The English dub created one by casting Spike Spencer, the English voice of Shinji Ikari, as Takuma, who protests that he doesn't want to climb into a giant mecha and is told that he mustn't run away.
Likewise, when Kurz introduces himself to Kaname and Kyoko, he puts on a Funny Foreigner act. In the dub, he affects an Italian accent; Vic Mignogna is of Italian descent.
Allison Keith previously played Misato Katsuragi, a woman who likes to drink beer to relax and arms herself with a USP pistol.
Author Existence Failure: Mike Kleinhenz passed away only a few years after The Second Raid's dub was released, meaning that when Invisible Raid is inevitably dubbed in English someone will need to take over as Kalinin.
The Danza: Yukari, the AI in Kurz's Arm Slave, is voiced by Yukari Tamura. This also partly crosses with Comic Book Fantasy Casting, since the original novels noted that Kurz intentionally modeled the AI on "a popular Japanese idol", even providing voice samples.
Super Robot Wars: Appears in Judgement, W (which includes The Second Raid) and in Z3 (which includes the light novels). However, in order to avoid "pre-casting" any potential anime sequels, only the characters who had already appeared in the anime were voiced, meaning novel-exclusive characters like Leonard's minions and Nami are left out in the cold. However, that was mostly thrown out the window in V, as all 3 of Leonard's minions serve as bosses (and are, therefore, voiced); Lee Fawler is voiced by Tomokazu Sugita, Wilhelm Casper by Masaki Terasoma, and Sabina Lefnio by Marina Inoue.
Too Soon: The name of Sōsuke Sagara's "home" country (Afghanistan) was changed in the anime and translation to a fictional country (Helmajistan).
Likewise, the second half of Fumoffu episode 1, in which Sōsuke (fakes) kidnapping a young boy to use as leverage against thugs who kidnapped Kaname, never aired on Japanese TV due to a string of kidnapping cases at the time.