[quote=@Lunar][hider=Lunar's Sheet]
I'm new to 40k and I don't know if my cs has enough meat, so I'm sorry if I'm not to experienced with the lore and such and I hope I can still join

Name: Ansiel Fas

Age: 23

Class: Assault

Equipment : Plasma gun, two inferno pistols, chain sword, Mk VIII Errant Armour, 4x krak grenade, jump pack

Notable Deeds: has killed a large necron solo. Has Ben through many battles but still seemes "happy"

Time with Inquisitor: five years

Appearance:
[hider=Look]
red hair, right arm and left leg is painted orange. [img]http://images.dakkadakka.com/gallery/2011/3/21/199889_mb-Adeptus%20Sororitas,%20Artwork,%20Female,%20Sisters%20Of%20Battle.jpg[/img][/hider]

40K Knowledge Question: how did necrons come to be?[/hider]
[/quote]

Sure, you can join, although your sheet will need some tweaking up.
I also recommend brushing up on 40k lore, which is extremely expansive and almost unending. The links below go to the Lexicanum. 

It seems like your character is a [url=http://wh40k.lexicanum.com/wiki/Adepta_Sororitas]Sister of Battle/Adepta Sororitas[/url] , they don't have Mk8 Errant Power Armor, those are for Space Marines/Adeptus Astartes. They use their own series of power armor, linked [url=http://wh40k.lexicanum.com/wiki/Power_Armour#Adepta_Sororitas_Power_Armour]here[/url].

[url=http://wh40k.lexicanum.com/wiki/Inferno_pistol]Inferno Pistols[/url] are extremely rare weapons, having two is nothing to scoff at. Perhaps the reason why your character has two of these weapons, when there are only a few in each sector of space, could be put in your Notable Deeds. 

Like Monochromatic said, reading some of the other character sheets in the character tab is a good way of getting a feel of what kind of sheets we're looking for. Aside from that reading up on pages in the Lexicanum is a good way of finding inspiration, understanding the universe, and knowing generally who has what and who can do what.