Due to an obvious amount of bloodiness and violence contained in this game, I come with reflection and suggestion. Particularly I mean rating by organization like PEGI (Pan European Game Information) http://www.pegi.info, or ESRB (Entertainment Software Rating Board) https://www.esrb.org. In my opinion, though Red Eclipse is free and open-source game, it cointans an excessive amount of blood and gore and should be somehow rated due to it.
For instance, if we take a look at website of Quake Live, the famous FPS shooter game, you can notice a sign below on the page:
That game got a rating “TEEN“, which means, that content is generally suitable for ages 13 and up. It may contain violence, suggestive themes, crude humor, minimal blood, simulated gambling and/or infrequent use of strong language.
I am not an instructed expert to determine rating and I know that this topic has been discussed by experts and opinions differ. Althought, in my opinion (based on logical understanding of development of children's human mind – for which I have got some schooling, and beside it, it is based also on reading articles and opinions of scientists), it makes sense that kids should play games with regard to their age, as this is similar about other things also, not any related to video gaming industry, which is why I assume, that in Europe works for instance PEGI and I am glad that it exists.
Shortly said, it should mean: “When the kid is ready for this or that“. It is individual, but proper timing could have a positive influence on personality development. In other case, it can even negatively influence natural development and that is proven.
Example: Could a 5 year old child enjoy watching a psychological movie like the “Inception“?
With some exceptions probably yes, but some cartoon movie will be appreciated much more. But why? There is several reasons: Cartoons are usually fun to watch and children never don't want to be bored, because they desire to learn new things and discover. Also they tend to be more imaginative/fantastical than adults about certain things and right the fantastical cartoons enable them to partially satisfy their desires. That's why right at the first look will cartoon movie be more enticing than realisticaly portrayed (though with sci-fi elements) “Inception“.
Now back to the video gaming industry, that is subordinated by age restrictions also, but certainly less than movies, which is wrong in my view. In case of Red Eclipse, after several years of development, there is still no option to let users in the menu reduce or disable blood and gore effects. But what more, with release of version 1.4, comes also flying heads after headshot, which can't be disabled, unless you know how to use a command line and proper command, that is nowhere explained.
About the rating, I suppose, that ESRB could be the organization for giving the rating, since PEGI is meant for Europe. If someone knows more information about it, please just post it here.
My personal opinion: The Red Eclipse is a game cointaining violence and excessive amount of blood and gore effects. At first look the game seems non-realistic (especially because of its colourfulness and rather futuristic look), but characters (when hit or fragged) show enormous amount of realistic looking blood and can be shown certain type of violence (kicking) and realism (separating head from body when projectile hits head; ragdoll physics) and it is unclear, if these fighting characters are meant to be some droids or humans in a futuristic suit), also because computer-controlled players wear typically human names.
Note: Playerbase seems very various, so the game might be played by kids, but by adults as well. Responsibility of parents is to be informed which games their children play (especially in early age), but unfortunately, there are cases when some parents don't care, don't mind and/or aren't just well informed.
Suggestion:
1) It should be more obvious if the fighting characters are humans or not, otherwise it is very confusing.
2) Menu should contain an option to reduce and disable blood and gore effects.
3) To determine age limitation, rating by proper organization would be suitable. (Using a sign also in the main screen in game would be even more helpful for players and parents) (EDIT: It can costs even thousands of dollars...)
Few commands to change blood and gore effects:
/debrisscale 0 (turns off debris effect after explosions)
/bloodscale 0 (turns off blood)
/bloodsize N [where N= 50 (default), note: too low values leads to crash]
/gibscale 0 (turns off gore effect)
/headlessmodels 0 (disables headless player model)
It is quite sad that for this issue were not payed enough attention in development when v1.4 in other aspects brings many improvements and changes.
. Other games never came out in germany ( although everybody has it in reality). That has really a negative effect to the atmosphere of such games. The Quintessence is that nobody likes that and everybody is looking for a "bloodpatch" or an Austrian version of the game - which means full violence effects, but everything is in german. It can be a complicate topic 
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