This is a scenario I threw together quite a while ago for MIGSCON. I've run it several times and it seems to be well balanced. I've also provided a brief point system, in case you want to use different races. It was designed for 4 players.

WARNING: The below description contains spoiler information. If you intend to be a player in this scenario, read no further. The set up is only intended for the GM.

Raids on merchant shipping lines have suddenly increased all along the frontier. It's unknown who's behind it, but so far they've avoided any fleet units and have only hit unarmed freighters.

Your mission is to seek out and destroy these raiders. Three empty freighters have been supplied as bait. Due to the amount of dust in the area, these freighters cannot move faster than 12 inches per turn. You may deploy your ships anyway you wish within the earth entry zone and must attempt to get the freighters off the opposite edge of the table. You must protect these ships. Just because they are empty doesn't mean they are expendable.

Your military forces are:
3 Earthforce Omega Battleships, 4 Hyperion Cruisers, and 3 medium Freighters.

A new race has been discovered at the fringes of the empire. A Taskforce (yours) has been dispatched to seek out these aliens and test their military capabilities.

However, all you've encountered so far have been freighters and transports. There is no honour in destroying these. How can you send back a detailed report to the Klingon High Command if they won't come out and fight. More importantly how can one aquire honour by attacking freighters. They must be related to the Ferengi.

Your forces are:
2 Bird of Prey Squadrons, 4 K'Tinga Cruisers

The BOP squadrons are deployed hidden on the table (stationary), watching for worthy targets. The K'tinga re-enforcements will arrive three turns after a Bird of Prey sends word of Human warships. 2 K'tingas will enter at Entry A, and the other 2 at entry B. The BOP squadrons may not send word until one of them is damaged by Human fire.

NOTE: you should use the optional electronic warfare and terrain rules.

As you can tell by now, it's not really a convoy raid, it's an escalating set piece battle. The title is meant to intentionally mislead the players. Each side receives victory points equal to the value of enemy ships destroyed (except freighters). The Humans are tech 4 (of course), and the Klingons are tech 5. The table is eight feet long and four feet wide. Use the rules for scanning & terrain.

So far, the Humans have won, due to the Klingon players attacking the human battleships head on with their BOPs before the K'tingas could arrive.

To use other races for this scenario, each side should have about 100 pts (not including freighters). No ship should be larger than a battleship. The attacker should deploy less than half his points on the table at the start of the game.