Required Player Level: 23
Available in the Community Robot Factory
I built this small version of my Fleeting Stalker design for level 23 players, and it is the first effective rail flier available to learning players. The key features of this design are the extensive use of prisms to control damage spread (triforce armor) and to create, not one core, but five cores in one bundle and two more around the rim of the bot. Other key features include four down thrusters to aid in holding steady on a steep hillside or rim to get that perfect shot, a couple reverse thrusters to aid in landing on that small mesa to again get that great shot, blocks to mask all my thrusters from a forward view (as you use your rails, you will notice that you can see thruster glow before anything else), wheels to allow easy nap-of-the-earth flying (not something you can do with legs), and a thin profile to aid in hiding in any depression.
Use your mobility to set up shots and lay ambushes from unexpected positions. In lower tiers, players don't watch the mesa rims very closely (not like they will when legs become available and everybody and his brother is crawling around on the rims) so abuse this to lay waste to the unwary. Flit from sniper nest to sniper nest as you're reloading to keep the other team guessing.
This bot is still a little nose heavy, so as you get more CPU, I'd recommend that you add a bit of weight to the rear of the craft. It's also a bit under powered, so more thrusters, or turning some of the Mk 4 thrusters into pairs of Mk2 thrusters would be recommended. Last but not least, a jammer and a radar are always handy to have.