I'm on Gerald's mission where you have to cross the river with archers..

Go across the river with all your troops hit the enemy in the trees hard and the easyest way to get through is have the archers cover your footsolders, then move to the flood gates and set it off when the time is right...and then move your troops as fast as you can to save the outher general..I hope this is the right mission

*The road to Hironeiden has fallen to the Hecks who also killed everyone at Esse You must cross the river at Halmoral in order to get to the capital where Walden and the King is.

ok so you get to pick 3 free units i picked my Sappers and Archers unit.

Start off by sending a Scout north. You'll discover two smaller Orc units along the river, not to mention a Dark Legion unit far up north . Engage the two small Orc units along the river with Gerald
and the Longbowmen.

Gerald gets mad for some for something pesonal I think

Also, make sure to take care of the lvl. 8 unit that rushes from the north.
You'll hardly lose any life. Watch for the two Dark Elf units to the far north
that will flank downward. You can either plant traps, lure them down, and
ambush them. Or, you can light the forests with Fire Arrows, and then finish
off the remaining ones. Either way, focus on their leader to kill them fast! as the elemental boosts will do more damage against your resistance.
Once they're both dead send a Scout across the river. There are about 7-8 Dark
Archers units. This is a whole crapload. Apparently, they have some form of
knowing you were coming.

After a while, Rupert suggests that your men use Fire to flush the Dark Elves
out, but at the same time, that would also slaughter your men - or so
you'd think.

- Move to the very top of the river. Look at a small lip that sticks out along
the land. Now, set a point for your Longbowmen to stand, and launch fire arrows
directly across on land. Some of the trees should catch on fire. This will
scare off most of the Dark Elves stationed there. When they move south, WAIT
for the flames to die down. Then, move across, and you have two choices. You
can attempt to kill some of these Archers units for some needed EXP, or simply
rush south along the western edge to the point. I'd rather kill some of the
units. Be weary of the lvl. 25 ones though, as they're much tougher. oh and i know this is the correct level ok have fun =)

Take the cavalry and archers and fight up until you get the top of the coast. I prefer cavalry because they are stronger than sappers. Position the archers up top so they can cleanly fire onto the other side. this will cause the other archers flee south. cross the river and proceed down the left side of map.

p.s. Rupert did say something about a fire attack right.+ archers must be longbow

Make sure that your archers have a really good ranged number at one point in the river it's a little narrow, kinda close to the middle of map maybe a little bit closer to bottom, fire your arrow across the river and the enemy troops should spred out giving you the chance to swim straight across and go to back of map and then you can leave the level or use your archers to gain more expirience. Remember you can't have enough range for your archers

there are 2 parts of the river that are closer to the archers on the other side. get your archers to shoot fire arrows. they will die or move away from the fire heavily damaged.