A couple of years ago (I believe) I posted an image of an OC I made called "Triclonia".
Originally, she was to be a V-22 alt-mod Decepticon with a preference for close combat, but nowadays she's gotten a different design:
Now, rather than being a melee master, she is an "Assault Transport". She carries an impressive array of weaponry within her *ahem* "Storage compartments". From tazers to swords to bazookas, she's probably got that in there somewhere. However, she has to shed some of her arsenal if she's ever used for a transport mission.
Her story has changed, also. (Skip the quote for more art info)
While originally written as a Starscream stooge, she's now the leader of a group called the "Turbo-Prop Sisters" a group who specializes in retrieving items when lots of firepower is needed. Her sisters, Diana (A Chinook Decepticon) and Monica (An Alpha-Jet Decepticon) act as the main carrier and point-defense units on their missions.
Triclonia is the most seductive of the three and has a very strong personality. She is proud of the fact that she retains a feminine look despite her size (Easily rivaling that of Megatron) which can cause many an awkward moment ("Aww, whassa matter, little man? Don't like big girls?")
She is quite competent, if a little trigger-happy, and is the face of the group. However, her size combined with a low top-speed and little armor makes her a bit fragile, so she's only best for fast grab-and-run deployments.
Granted this is just a sketch and I have little experience drawing robots, but I could probably use this as a guide if I ever make a request from a better artist to draw her and I plan on doing a few more of my designs and plot-points. I really want to try learning the Transformers: Animated style. I have some ideas, as well:
Diana (Chinook) and Monica (Alphajet)
"Momma" Tetra (C-130), the real leader of the group.
Chromia (Duh) and Thunderblast (Her crazed twin sister), Animated style.
The LOCI (pronounced "Loki", Linean Option Changeable Interceptor) A human-built, transforming plane McGuffin based on Starscream that would make a human cast member not useless.