How to override views-view-field.tpl.php in custom module?
You should add the template file on your module info file:

name = My Module
description = Create custom views template.
package = Views
dependencies[] = views
core = 7.x

files[] = mymodule.module
files[] = includes/mymodule.views.inc
files[] = includes/views-view-field--views--ticker.tpl.php

version = "7.x-4.1"
core = "7.x"
project = "mymodule"
datestamp = "1311290520"