One similar graphic novel could be 'Watchmen'. It has complex characters and a deep, thought - provoking storyline. Another is 'The Dark Knight Returns' which is known for its dark and gritty take on the Batman character. And 'V for Vendetta' also shares some similarities with its exploration of themes like resistance and identity in a dystopian setting.
Sure. 'Sin City' is somewhat alike. It has a very distinct art style and noir - like stories. 'Maus' is also in a way related as it uses the graphic novel format to tell a powerful and unique story, though it's more on the historical side compared to'red squad graphic novel'. And then there's 'Preacher' which has a lot of dark humor and complex characters like some works that might be similar to'red squad graphic novel'.
Well, 'Y: The Last Man' can be considered. It has an interesting premise and engaging characters. The story unfolds in a post - apocalyptic world, much like how'red squad graphic novel' might have its own unique world - building. 'Transmetropolitan' is another one. It's got a unique style and deals with various social and political issues in a fictional future setting, just like'red squad graphic novel' might touch on certain themes.